Papers
論文

“Z-schematic Water Splitting on Photocatalyst Sheet Composed of Transition Metal-Doped Metal Oxides with Long Wavelengths Visible Light Responses and a Conductive Polymer” Open Access
Keigo Nagatsuka, Shuhei Natsume, Shunya Yoshino, Naoto Morishita, Yuichi Yamaguchi, Hideki Kato, Akihiko Kudo*, J. Phys. Chem. C, 128 [41], 17291–17301 (2024). DOI: 10.1021/acs.jpcc.4c04083

“Photocatalytic water splitting over K₃Li₂Ta₅O₁₅ with a C-site-filled tungsten bronze structure and influence of metal cations at C-site on photocatalytic properties”
Misa Moriya, Hideki Kato, Akihide Iwase*, Bull. Chem. Soc. Jpn., 97 [10], uoae102 (2024). DOI: 10.1093/bulcsj/uoae102

“Effect of Nitrogen Vacancy Sites of Oxynitride Support on Catalytic Activity for Ammonia Decomposition” Open Access
Kazuki Miyashita, Kiya Ogasawara, Masayoshi Miyazaki, Hitoshi Abe, Yasuhiro Niwa, Hideki Kato*, Hideo Hosono*, Masaaki Kitano*, NPG Asia Mater., 16, 54 (2024). DOI: 10.1038/s41427-024-00572-6

“Photocatalytic water splitting over K₆M_10.8O₃₀ with a partially filled tetragonal tungsten bronze structure”
Misa Moriya, Hideki Kato, Akihide Iwase*, Chem. Lett., 53 [6], upae110 (2024). DOI: 10.1093/chemle/upae110

“Synthesis of N-doped MgTiO₃ with Ilmenite Structure Working as Photocatalysts for O₂ Evolution under Visible Light”
Shunya Yoshino, Shuma Shindo, Hideki Kato*, Chem. Lett., 53 [4], upae067 (2024). DOI: 10.1093/chemle/upae067

“Uncovering the distinctive phase transition characteristics and thermochromic performance of VO₂ with different N-doping sites” Open Access
Yibei Xue, Lei Miao, Takuya Hasegawa, Ayahisa Okawa, Shunya Yoshino, Hideki Kato, Masato Kakihana, Shu Yin*, Appl. Surface Sci., 657, 159779 (2024). DOI: 10.1016/j.apsusc.2024.159779

“Z-scheme water splitting utilizing CuLi_1/3Ti_2/3O₂ as a hydrogen-evolving photocatalyst with photo-response up to 600 nm” Open Access
Shunya Yoshino, Tanya Kurutach, Qingshan Liu, Toshiki Yamanaka, Shunsuke Nozawa, Makoto Kobayashi, Hiromu Kumagai, Hideki Kato*, Sustainable Energy Fuels, 8 [6], 1260–1268 (2024). DOI: 10.1039/d3se01622f

“Multiemission of Ce³⁺ from Single Crystallographic Site Induced by Disordering of Ions”
Takuya Yasunaga, Makoto Kobayashi*, Kenji Oqmhula, Huan Qi, Tom Ichibha, Kenta Hongo, Shunsuke Yamamoto, Ryo Maezono, Masaya Mitsuishi, Minoru Osada, Hideki Kato*, Masato Kakihana, Inorg. Chem., 63 [2], 1288-1295 (2024). DOI:10.1021/acs.inorgchem.3c03789

“Surface Defect Healing in Annealing from Nanoporous Carbons to Nanoporous Graphenes”
Kaoru Yamazaki*, Shunsuke Goto, Shunya Yoshino, Anna Gubarevich, Katsumi Yoshida, Hideki Kato, Masanori Yamamoto*, Phys. Chem. Chem. Phys., 25 [48], 32972-32978 (2023). DOI:10.1039/D3CP04921C

“Acid–Base Property of Tetragonal YNbO₄ with Phosphate Groups and Its Catalysis for the Dehydration of Glucose to 5‐Hydroxymethylfurfural”
Daniele Padovan, Koichiro Endo, Takeshi Matsumoto, Toshiyuki Yokoi, Atsushi Fukuoka, Hideki Kato*, Kiyotaka Nakajima*, Small Struct., 4 [6], 2200224 (11 pages) (2023). DOI:10.1002/sstr.202200224 Editor's Choice

“Crystal-phase and Surface-Structure Engineering of MoS₂ for Improving Gas Sensor Performance at Room Temperature”
Ardiansyah Taufik, Yusuke Asakura, Takuya Hasegawa, Hideki Kato, Masato Kakihana, Rosari Saleh, Tohru Sekino, Shu Yin*, J. Soc. Powder Technol. Jpn., 59 [7], 338-347 (2022). DOI:10.4164/sptj.59.338

“Fabrication of high-efficiency YAG:Ce³⁺ phosphors via concurrent optimization of firing atmosphere and fluxing agent”
Shinnosuke Akiyama*, Riho Moriyama, Ryo Miya, Takehiro Tanaka, Junya Tanaka, Yasushi Sato, Koji Tomita, Masato Kakihana, Hideki Kato, Opt. Mater., 128, 112386 (2022). DOI:10.1016/j.optmat.2022.112386

“Influences of pulverization and annealing treatment on photocatalytic activity of BiVO₄ for oxygen evolution”
Kazuya Okuno, Hiromu Kumagai, Junie Jhon M. Vequizo, Kosaku Kato, Makoto Kobayashi, Akira Yamakata*, Masato Kakihana, Hideki Kato*, Sustainable Energy Fules, 6 [7], 1698-1707 (2022). DOI:10.1039/d2se00065b Sustainable Energy & Fuels Recent HOT Articles

“Effects of particle size of raw materials on phase formation and optical properties of Ce³⁺-doped Y₃Al₅O₁₂ phosphors”
Shinnosuke Akiyama*, Riho Moriyama, Junya Tanaka, Yasushi Sato, Masato Kakihana, Hideki Kato, Opt. Mater., 121,111549 (2021). DOI:10.1016/j.optmat.2021.111549

“SnO-SnO₂ modified two-dimensional MXene Ti₃C₂T for acetone gas sensor working at room temperature”
Zijing Wang, Fen Wang, Angga Hermawan, Yusuke Asakura, Takuya Hasegawa, Hiromu Kumagai, Hideki Kato, Masato Kakihana, Jianfeng Zhu, Shu Yin,* J. Mater. Sci. Technol., 73,128-138 (2021). DOI:10.1016/j.jmst.2020.07.040

“Utilization of Perovskite-Type Oxynitride La_0.5Sr_0.5Ta_0.5Ti_0.5O₂N as an O₂-Evolving Photocatalyst in Z-Scheme Water Splitting”
Hiromu Kumagai, Ryosuke Aoyagi, Kosaku Kato, Akira Yamakata, Masato Kakihana, Hideki Kato,* ACS Appl. Energy Mater., 4 [3], 2056-2060 (2021). DOI:10.1021/acsaem.0c03055

“A Water‐Splitting System with a Cobalt (II,III) Oxide Co‐Catalyst‐Loaded Bismuth Vanadate Photoanode Along with an Organo‐Photocathode”
Takahiro Murakami, Kosuke Ikezoi, Keiji Nagai, Hideki Kato, Toshiyuki Abe,* ChemElectroChem, 7 [24], 5029-5035 (2020). DOI:10.1002/celc.202001271

“Surface Engineering of 1T/2H-MoS₂ Nanoparticles by O₂ Plasma Irradiation as a Potential Humidity Sensor for Breathing and Skin Monitoring Applications”
Ardiansyah Taufik, Yusuke Asakura, Takuya Hasegawa, Hideki Kato, Masato Kakihana, Shingo Hirata, Miki Inada, Shu Yin,* ACS Appl. Nano Mater., 3 [8], 7835-7846 (2020). DOI:10.1021/acsanm.0c01352

“Highly Robust Oxynitride Phosphor against Thermal Oxidization and Hydrolysis”
Dawei Wen,* Hideki Kato, Masato Kakihana, ACS Sustainable Chem. Eng., 8 [32], 12286-12294 (2020).DOI:10.1021/acssuschemeng.0c04389

“Alkali-assisted hydrothermal preparation of g-C₃N₄/rGO nanocomposites with highly enhanced photocatalytic NO_x removal activity”
Zhanyong Gu, Biao Zhang, Yusuke Asakura, Satoshi Tsukuda, Hideki Kato, Masato Kakihana, Shu Yin,* Appl. Surf. Sci., 521, 146213 (9 pages) (2020). DOI:10.1016/j.apsusc.2020.146213

“1T/2H-MoS₂ engineered by in-situ ethylene glycol intercalation for improved toluene sensing response at room temperature”
Ardiansyah Taufik, Yusuke Asakura, Hideki Kato, Masato Kakihana, Rosari Saleh, Tohru Sekino, Shu Yin,* Adv. Powder Technol., 31 [5], 1868-1878, (2020). DOI:10.1016/j.apt.2020.02.022

“Super stable (Ba,Sr)LuAl₂Si₂O₂N₅:Ce³⁺,Eu²⁺ phosphors”
Dawei Wen,* Hideki Kato, Masato Kakihana, J. Mater. Chem. C, 8 [13], 4510-4517, (2020).DOI:10.1039/c9tc06932a

“Lewis Acid and Base Catalysis of YNbO₄ Toward Aqueous‐Phase Conversion of Hexose and Triose Sugars to Lactic Acid in Water”
Minjune Kim, Silvia Ronchetti, Barbara Onida, Nobuyuki Ichikuni, Atsushi Fukuoka, Hideki Kato,* Kiyotaka Nakajima,* ChemCatChem, 12 [1], 350-359 (2020). DOI:10.1002/cctc.201901435

“Two-Dimensional Perovskite Oxynitride K₂LaTa₂O₆N with an H⁺/K⁺ Exchangeability in Aqueous Solution to Form Stable Photocatalyst for Visible-Light H₂ Evolution”
Takayoshi Oshima, Tom Ichibha, Kenji Oqmhula, Keisuke Hibino, Hiroto Mogi, Shunsuke Yamashita, Kotaro Fujii, Yugo Miseki, Kenta Hongo, Daling Lu, Ryo Maezono, Kazuhiro Sayama, Masatomo Yashima, Koji Kimoto, Hideki Kato, Masato Kakihana, Hiroshi Kageyama, Kazuhiko Maeda,* Angew. Chem., Int. Ed., 59 [24], 9736-9743 (2020). DOI:10.1002/anie.202002534

“Synthesis of Ba_1-xSr_xYSi₂O₅N and discussion based on structure analysis and DFT calculation”
Takuya Yasunaga, Makoto Kobayashi,* Kenta Hongo, Kotaro Fujii, Shunsuke Yamamoto, Ryo Maezono, Masatomo Yashima, Masaya Mitsuishi, Hideki Kato,* Masato Kakihana, J. Solid State Chem., 276, 266-271 (2019). DOI:10.1016/j.jssc.2019.05.012

“Z-scheme water splitting by microspherical Rh-doped SrTiO₃ photocatalysts prepared by a spray drying method”
Hong Phong Duong, Takahiro Mashiyama, Makoto Kobayashi, Akihide Iwase, Akihiko Kudo, Yusuke Asakura, Shu Yin, Masato Kakihana, Hideki Kato,* Appl. Catal. B: Environ., 252, 222-229 (2019). DOI:10.1016/j.apcatb.2019.04.009

“B-site-ordered Double-perovskite Oxide Up-conversion Phosphors Doped with Yb and Ho, Er, or Tm”
Kohei Kasuya, Yasushi Sato, Makoto Kobayashi, Hideki Kato, Masato Kakihana, Koji Tomita,* J. Photopolym. Sci. Technol., 32 [4], 593–596 (2019). DOI: 10.2494/photopolymer.32.593

“Crystal structures of Ca_4+xY_3-xSi₇O_15+xN_5-x (0 ≦ x≦ 1) comprising of an isolated [Si₇(O,N)₁₉] unit”
Makoto Kobayashi,* Takuya Yasunaga, Hideki Kato,* Kotaro Fujii, Masatomo Yashima, Masato Kakihana, Acta Crystallogr. E, E75, 260-263 (2019). DOI: 10.1107/S2056989019001257

“Hydrothermal Synthesis of Pseudocubic Rutile-Type Titania Particles”
Makoto Kobayashi,* Hideki Kato, Takamichi Miyazaki, Masato Kakihana, Ceramics, 2 [1], 56-63 (2019). DOI: 10.3390/ceramics2010005

“Ce⁴⁺-based Compounds Capable of Photoluminescence by Charge Transfer Excitation under Near Ultraviolet-Visible Light”
Dawei Wen, Hideki Kato,* Makoto Kobayashi, Shunsuke Yamamoto, Masaya Mitsuishi, Kotaro Fujii, Masatomo Yashima, Masato Kakihana, Inorg. Chem., 57 [23], 14524-14531 (2018). DOI: 10.1021/acs.inorgchem.8b01900

“Expansion of photoresponse window of BiVO₄ photocatalyst by doping of chromium(VI)”
Kazuya Okuno, Hideki Kato,* Junie Jhon M. Vequizo, Akira Yamakata,* Hisayoshi Kobayashi, Makoto Kobayashi, Masato Kakihana, RSC Advances, 8(67), 38140-38145 (2018). DOI: 10.1039/C8RA07830K

“Photoluminescence Properties of Layered Perovskite-Type Strontium Scandium Oxyfluoride Activated with Mn⁴⁺”
Hideki Kato,* Yohei Takeda, Makoto Kobayashi, Hisayoshi Kobayashi, Masato Kakihana, Front. Chem., 6, 467 (2018). DOI: 10.13389/fchem.2018.00467

“Structural Change in SrSiO₃ Induced by Introduction of Nitrogen”
Makoto Kobayashi, Jihae Kim, Hironori Sato, Takuya Yasunaga, Hideki Kato,* Kotaro Fujii, Masahiro Shiraiwa, Masatomo Yashima, Masato Kakihana, Chem. Lett., 47 [10], 1327-1329 (2018). DOI: 10.1246/cl.180620

“Undoped Layered Perovskite Oxynitride Li₂LaTa₂O₆N for Photocatalytic CO₂ Reduction with Visible Light”
Takayoshi Oshima, Tom Ichibha, Ken Sinkou Qin, Kanemichi Muraoka, Junie Jhon M. Vequizo, Keisuke Hibino, Ryo Kuriki, Shunsuke Yamashita, Kenta Hongo, Tomoki Uchiyama, Kotaro Fujii, Daling Lu, Ryo Maezono, Akira Yamakata, Hideki Kato, Koji Kimoto, Masatomo Yashima, Yoshiharu Uchimoto, Masato Kakihana, Osamu Ishitani, Hiroshi Kageyama, Kazuhiko Maeda,* Angew. Chem. Inte. Ed., 57 [27], 8154-8158 (2018). DOI: 10.1002/anie.201803931

“Effects of the SrTiO₃ support on visible-light water oxidation with Co₃O₄ nanoparticles”
Megumi Okazaki, Miharu Eguchi, TTomoki Uchiyama, Daling Lu, Hidkei Kato, Yoshiharu Uchimoto, Masato Kakihana, Kazuhiko Maeda,* Dalton Trans., 46 [48], 16959–16966 (2017). DOI: 10.1039/c7dt03444j

“Photoluminescence Properties of Double Perovskite Tantalates Activated with Mn⁴⁺, AE₂LaTaO₆:Mn⁴⁺ (AE = Ca, Sr, and Ba)”
Yohei. Takeda, Hideki Kato,* Makoto Kobayashi, Shunsuke Nozawa, Hisayoshi Kobayashi, Masato Kakihana, J. Phys. Chem. C, 121 [34], 18837−18844 (2017). DOI: 10.1021/acs.jpcc.7b06280

“Synthesis of Rare Earth Niobates and Tantalates Powders via a Peroxo Complex Route”
Hideki Kato,* Katsuya Shimizu, Kiyotaka Nakajima, Makoto Kobayashi, Masato Kakihana, Chem. Lett., 46 [10], 1515-1517 (2017). DOI: 10.1246/cl.170652

“Analysis of growth kinetics and impact of NH₃ on the morphology evolution of hexagonal-prism shaped Y₄O(OH)₉NO₃/Y₂O₃ single crystals”
Sudeshna Ray, Govind B. Nair,* Sanjay J. Dhoble, Hideki Kato, Masato Kakihana, Teng Ming Chen, Mater. Res. Bull., 95, 597-606 (2017). DOI: 10.1016/j.materresbull.2017.07.033

“Growth of TiO₂ Microspheres with Radially Oriented Configuration”
Quang Duc Truong, Hideki Kato, Makoto Kobayashi, Masato Kakihana,* CrystEngComm, 19 [32], 4832-4837 (2017). DOI: 10.1039/C7CE01158J

“Effect of Hydroxy and Carboxy Groups on Anisotropic Growth of Rutile-type Titania Under Hydrothermal Conditions”
Makoto Kobayashi,* Sungho Lee, Hideki Kato, Masato Kakihana, J. Asian Ceram. Soc., 5 [3], 320-325 (2017). DOI: 10.1016/j.jascer.2017.06.006

“Site occupancy and luminescence properties of Ca₃Ln(AlO)₃(BO₃)₄:Ce³⁺,Tb³⁺,Mn²⁺ (Ln = Y, Gd) ”
Dawei Wen, Hideki Kato,* Makoto Kobayashi, Shunsuke Yamamoto, Masaya Mitsuishi, Masato Kakihana, J. Mater. Chem. C, 5 [18], 4578-4583 (2017). DOI: 10.1039/C7TC00941K

“Synthesis, Structure and Photoluminescence of a Novel Oxynitride BaYSi₂O₅N Activated by Eu²⁺ and Ce³⁺”
Makoto Kobayashi, Takuya Yasunaga, Hironori Sato, Hideki Kato,* Kotaro Fujii, Masatomo Yashima, Masato Kakihana, Chem. Lett., 46 [6], 795-797 (2017). DOI: 10.1246/cl.170144

“Development of Various Metal Sulfide Photocatalysts Consisting of d⁰, d⁵, and d¹⁰ Metal Ions for Sacrificial H₂ Evolution under Visible Light Irradiation”
Tomoaki Takayama, Issei Tsuji, Naruhiko Aono, Masamitsu Harada, Tsutomu Okuda, Akihide Iwase, Hideki Kato, Akihiko Kudo,* Chem. Lett., 46 [4], 616-619 (2017). DOI: 10.1246/cl.161192

“Synthesis and Photocatalytic Properties of Tetragonal Tungsten Bronze Type Oxynitrides”
Katsuya Shimizu, Hideki Kato,* Makoto Kobayashi, Masato Kakihana, Appl. Catal. B: Environ., 206, 444-448 (2017). DOI: 10.1016/j.apcatb.2017.01.057

“Cobalt Oxide Nanoclusters on Rutile Titania as Bifunctional Units for Water Oxidation Catalysis and Visible Light Absorption: Understanding the Structure-Activity Relationship”
Kazuhiko Maeda,* Koki Ishimaki, Megumi Okazaki, Tomoki Kanazawa, Daling Lu, Shunsuke Nozawa, Hidkei Kato, Masato Kakihana, ACS Appl. Mater. Interfaces, 9 [7], 6114–6122 (2017). DOI: 10.1021/acsami.6b158047

“A High-luminescence BaZrSi₃O₉:Eu²⁺ Blue-green-emitting Phosphor: Synthesis and Mechanism”
Tetsufumi Komukai,* Yasushi Sato, Hideki Kato, Masato Kakihana, J. Lumin., 181, 211-216 (2017). DOI: 10.1016/j.jlumin.2016.08.056

“Observation of visible light-driven water splitting by TiO₂ cystallized glass”
Kazuki Yoshida,* Hiroshi Takahashi, Hirokazu Masai, Nobuaki Terakado, Yoshihiro Takahasi, Takumi Fujiwara, Hideki Kato, Masato Kakihana, Int. J. Hydro. Energy, 41 [47], 22055–22058 (2016). DOI: 10.1016/j.ijhydene.2016.10.016

“緑色蛍光体(Ba, Sr)₂SiO₄:Eu²⁺のフラックス還元焼成条件と発光特性の関係”
小向哲史, 横山潤, 佐藤泰史, 加藤英樹, 垣花眞人, 粉体および粉末冶金, 63(10), 855-860 (2016). DOI: 10.2497/jjspm.63.855

“CaSrSiO₄:Eu²⁺橙赤色蛍光体の発光特性におけるフラックス剤を用いた還元焼成の効果”
小向哲史, 横山  潤, 佐藤泰史, 加藤英樹, 垣花眞人, 粉体および粉末冶金, 63(9), 835-839 (2016). DOI: 10.2497/jjspm.63.855

“Effect of Eu²⁺ concentration on the photoluminescence properties of red-emitting CaSrSiO₄:Eu²⁺ phosphors”
Tetsufumi Komukai,* Jun Yokoyama, Yuji Takatsuka, Yasushi Sato, Hideki Kato, Masato Kakihana, J. Ceram. Soc. Jpn., 124 [8], 823-826 (2016). DOI: 10.2109/jcersj2.16066

“A water splitting system using an organo-photocathode and titanium dioxide photoanode capable of bias-free H₂ and O₂ evolution”
Toshiyuki Abe,* Katsuma Fukui, Yuto Kawai, Keiji Nagai, Hideki Kato, Chem. Commun., 52 [49], 7735-7737 (2016). DOI: 10.1039/C6CC01225F

“Anomalous Orange Light Emitting (Sr,Ba)₂SiO₄:Eu²⁺ Phosphors for Warm White LEDs”
Dawei Wen, Hiroki Kuwahara, Hideki Kato, Makoto Kobayashi, Yasushi Sato, Takaki Masaki, Masato Kakihana,* ACS Appl. Mater. Interfaces, 8 [18], 11615-11620 (2016). DOI: 10.1021/acsami.6b02237

“Self-assembly of Polyethyleneamine-intercalated H₂Ti₂O₅ Nanoparticles into Spherical Agglomerates”
Makoto Kobayashi,* Hideki Kato, Masato Kakihana, J. Mater. Res., 31 [5], 564-572 (2016). DOI: 10.1557/jmr.2016.67

“Effect of Site Occupancies on Deep-red Emission from Eu²⁺-activated Ca₂SiO₄ Phosphor”
Hiroki Kuwahara, Yasushi Sato, Hideki Kato, Makoto Kobayashi, Takaki Masaki, Masato Kakihana, Chem. Lett., 45 [3], 321-323 (2016). DOI: 10.1246/cl.151145

“水熱法によるバリウムタンタレートナノシート光触媒の合成とその水分解活性”
高杉壮一, 冨田恒之, 岩岡道夫, 小林亮, 加藤英樹, 垣花眞人, J. Soc. Inorg. Mater., Jpn., 23 [380], 25-29 (2016).

“Large redshifts in emission and excitation from Eu²⁺-activated Sr₂SiO₄ and Ba₂SiO₄ phosphors induced by controlling Eu²⁺ occupancy on the basis on crystal-site engineering”
Yasushi Sato,* Hiroki Kuwahara, Hideki Kato, Makoto Kobayashi, Takaki Masaki, Masato Kakihana,* Opt. Photonics J., 5, 326-333 (2015). DOI: 10.4236/opj.2015.511031

“Photoluminescence Properties of Mn⁴⁺-activated Perovskite-type Titanates, La₂MTiO₆:Mn⁴⁺ (M = Mg and Zn)”
Yohei Takeda, Hideki Kato, Makoto Kobayashi, Hisayoshi Kobayashi, Masato Kakihana,* Chem. Lett., 44, 1541-1543 (2015). DOI: 10.1246/cl.150748 Editor's Choice

“Synthesis of Picolinate-iron(III) Compounds Through an Aqueous Solution Process”
Junki Sato, Makoto Kobayashi, Hideki Kato, Eunsang Kwon, Masato Kakihana,* J. Ceram. Soc. Jpn., 123, 751-755 (2015). DOI: 10.2109/jcersj2.123.751

“Improvement of hydrogen evolution under visible light over Zn_1-2x(CuGa)_xGa₂S₄ photocatalysts by synthesis utilizing a polymerizable complex method”
Ciro Scheremeta Quintans, Hideki Kato,* Makoto Kobayashi, Hiroshi Kaga, Akihide Iwase, Akihiko Kudo, Masato Kakihana, J. Mater. Chem. A, 3, 14239-14244 (2015). DOI: 10.1039/C5TA02114F

“Novel Titanium Complexes with a Reversible Structure Change on Solvent Adsorption and Desorption”
Makoto Kobayashi,* Tatsuya Okuhara, Hideki Kato, Sota Sato, Masato Kakihana, Chem. Lett., 44, 1050-1052 (2015). DOI: 10.1246/cl.150393

“Photocatalytic Water Oxidation Under Visible Light by Valence Band Controlled Oxynitride Solid Solutions LaTaON₂-SrTiO₃”
Hideki Kato,* Koichiro Ueda, Makoto Kobayashi, Masato Kakihana, J. Mater. Chem. A, 3, 11824-11829 (2015). DOI: 10.1039/C5TA02482J 2015 Journal of Materials Chemistry A Hot Papers

“Discovery of Novel Delafossite-Type Compounds Composed of Copper(I) Lithium Titanium with Photocatalytic Activity for H₂ Evolution under Visible Light”
Hideki Kato,* Tsuyoshi Fujisawa, Makoto Kobayashi, Masato Kakihana, Chem. Lett., 44, 973-975 (2015). DOI: 10.1246/cl.150341 Published on May 1, 2015.

“Hierarchical Structures of Rutile Exposing High-index Facets”
Quang Duc Truong, Hideki Kato, Makoto Kobayashi, Masato Kakihana,* J. Cryst. Growth, 418, 86-91 (2015). DOI: 10.1016/j.jcrysgro.2015.02.056

“Crystal Structures and Luminescence Properties of Eu²⁺-activated New NaBa_0.5Ca_0.5PO₄ and Na₃Ba₂Ca(PO₄)₃”
Minsung Kim, Makoto Kobayashi, Hideki Kato, Hisanori Yamane, Yasushi Sato, Masato Kakihana,* Dalton Trans., 44, 1900-1904 (2015). DOI: 10.1039/C4DT03024A

“The hydrothermal and solvothermal synthesis of LiTaO₃ photocatalyst: Suppressing the deterioration of the water splitting activity without using a cocatalyst”
Soichi Takasugi, Koji Tomita,* Michio Iwaoka, Hideki Kato, Masato Kakihana, Int. J. Hydrogen Energy, 40 [16], 5638–5643 (2015). DOI: 10.1016/j.ijhydene.2015.02.121

“Luminescence Properties of BaZrSi₃O₉:Eu Synthesized by an Aqueous Solution Method”
Tetsufumi Komukai,* Yuji Takatsuka, Satoko Tezuka, Hideki Kato, Masato Kakihana, J. Lumin., 158, 328-332 (2015). DOI: 10.1016/j.jcrysgro.2014.10.021

“Large enhancement of photocatalytic activity by chemical etching of TiO₂ crystallized glass”
Kazuki Yoshida,* Yoshihiro Takahashi, Rie Ihara, Nobuaki Terakado, Takumi Fujiwara, Hideki Kato, Masato Kakihana, APL Mater., 2, 106103 (6 pages) (2014). DOI: 10.1063/1.4897961APL Materials Editor's Picks 2014

“Synthesis of (Ca_1-XSr_X)₄Si₂O₇F₂ oxyfluoride solid solutions and their photoluminescence properties activated by Eu²⁺”
Jihong Min, Hideki Kato, Makoto Kobayashi, Yasushi Sato, Masato Kakihana,* J. Ceram. Soc. Jpn., 122 [8], 630-633 (2014). DOI: 10.2109/jcersj2.122.630

“The Significance of Phosphate Source in the Preparation of Functional Luminescent Phosphate Materials”
Minsung Kim, Makoto Kobayashi, Hideki Kato, Masato Kakihana,* J. Ceram. Soc. Jpn., 122 [8], 626-629 (2014). DOI: 10.2109/jcersj2.122.626

“Hydrothermal synthesis of magnetite particles with uncommon crystal facets”
Junki Sato, Makoto Kobayashi, Hideki Kato, Takamichi Miyazaki, Masato Kakihana,* J. Asian Ceram. Soc., 2 [3], 258-262 (2014). DOI: 10.1016/j.jascer.2014.05.008

“Tailoring of Deep-Red Luminescence in Ca₂SiO₄:Eu²⁺”
Yasushi Sato,* Hideki Kato, Makoto Kobayashi, Takaki Masaki, Dae-Ho Yoon, Masato Kakihana,* Angew. Chem. Int. Ed., 53 [30], 7756-7759 (2014). DOI: 10.1002/anie.201402520

“Development of two novel Eu²⁺-activated phosphors in the Na-Sc-Si-O system and their photoluminescence properties”
Jihong Min, Taichi Yamaguchi, Hideki Kato, Makoto Kobayashi, Hisanori Yamane, Masato Kakihana,* J. Lumin., 154, 285-289 (2014). DOI: 10.1016/j.jlumin.2014.05.006

“Insights into a selective synthesis of anatase, rutile and brookite-type titanium dioxides by a hydrothermal treatment of titanium complexes”
Mitsuru Yoshizawa, Makoto Kobayashi, Valery Petrykin, Hideki Kato, Masato Kakihana,* J. Mater. Res., 29 [1], 90-97 (2014). DOI: 10.1557/jmr.2013.229

“Photocatalytic activities of Cu_3xLa_1-xTa₇O₁₉ solid solutions for H₂ evolution under visible light irradiation”
Hideki Kato,* Arisa Takeda, Makoto Kobayashi, Michikazu Hara, Masato Kakihana, Catal. Sci. Technol., 3, 3147-3254 (2013). DOI: 10.1039/C3CY00557G

“Synthesis of highly active rhodium-doped SrTiO₃ powders in Z-scheme systems for visible-light-driven photocatalytic overall water splitting”
Hideki Kato, Yasuyoshi Sasaki, Nana Shirakura, Akihiko Kudo,* J. Mater. Chem. A, 1(39), 12327-12333 (2013). DOI: 10.1039/C3TA12803B

“Enhancement of Luminescence Properties of a KSrPO₄:Eu²⁺ Phosphor Prepared Using a Solution Method with a Water-Soluble Phosphate Oligomer”
Minsung Kim, Makoto Kobayashi, Hideki Kato, Masato Kakihana,* J. Mater. Chem. C, 1 [36], 5741-5746 (2013). DOI: 10.1039/C3TC31121J

“Synthesis of a novel bluish-green emitting oxynitride Ca₃Al₈Si₄O₁₇N₄:Eu²⁺ phosphor in a CaAl_4-xSi_xO_7-xN_x solid solution system”
Jihae Kim, Hideki Kato, Makoto Kobayashi, Yasushi Sato, Masato Kakihana,* Opt. Photonics J., 3 [6A], 29-33 (2013). DOI: 10.4236/opj.2013.36A006

“Development of a Novel Green-Emitting Phosphate Phosphor KSrY(PO₄)₂:Eu²⁺”
Akiko Saito, Hideki Kato, Makoto Kobayashi, Yasushi Sato, Masato Kakihana,* Opt. Photonics J., 3 [6A], 19-24 (2013). DOI: 10.4236/opj.2013.36A004

“A Highly Luminous LiCaPO₄:Eu²⁺ Phosphor Synthesized by a Solution Method Employing a Water-Soluble Phosphate Ester”
Minsung Kim, Makoto Kobayashi, Hideki Kato, Masato Kakihana,* Opt. Photonics J., 3 [6A], 13-18 (2013). DOI: 10.4236/opj.2013.36A003

“Exploration of New Phosphors Using a Mineral-Inspired Approach in Combination with Solution Parallel Synthesis”
Masato Kakihana,* Jihae Kim, Tetsufumi Komukai, Hideki Kato, Yasushi Sato, Makoto Kobayashi, Yuji Takatsuka, Opt. Photonics J., 3 [6A], 5-12 (2013). DOI: 10.4236/opj.2013.36A002

“Eu²⁺-activated CaSrSiO₄: a new red-emitting oxide phosphor for white-light-emitting diodes”
Satoko Tezuka, Yasushi Sato, Tetsufumi Komukai, Yuji Takatsuka, Hideki Kato, Masato Kakihana,* Appl. Phys. Express, 6, 072101 (4 pages) (2013). DOI: 10.7567/APEX.6.072101

“Photocatalytic Water Splitting over LaTa₇O₁₉ Composed of TaO₇ Pentagonal Bipyramids and TaO₆ Octahedra”
Hideki Kato,* Arisa Takeda, Makoto Kobayashi, Masato Kakihana, Chem. Lett., 42 [7], 744-746 (2013). DOI: 10.1246/cl.130216

“Fabrication of SrTiO₃ Exposing Characteristic Facets using Molten Salt Flux and Improvement of Photocatalytic Activity for Water Splitting”
Hideki Kato,* Makoto Kobayashi, Michikazu Hara, Masato Kakihana, Catal. Sci. Technol., 3, 1733-1738 (2013). DOI: 10.1039/C3CY00014A

“[Co(bpy)₃]^3+/2+ and [Co(phen)₃]^3+/2+ Electron Mediators for Overall Water Splitting under Sunlight Irradiation Using Z-Scheme Photocatalyst System”
Yasuyoshi Sasaki, Hideki Kato, Akihiko Kudo,* J. Am. Chem. Soc., 135 [14], 5541-5449 (2013). DOI: 10.1021/ja400238r

“The effect of Au cocatalyst loaded on La-doped NaTaO₃ on photocatalytic water splitting and O₂ photoreduction”
Akihide Iwase, Hideki Kato, Akihiko Kudo,* Appl. Catal. B: Environ., 136-137 [5], 89-93 (2013). DOI: 10.1016/j.apcatb.2013.02.006

“Control of valence band potential and photocatalytic properties of Na_xLa_1-xTaO_1+2xN_2-2x oxynitride solid solutions”
Koichiro Ueda, Hideki Kato,* Makoto Kobayashi, Michikazu Hara, Masato Kakihana, J. Mater. Chem. A, 1(11), 3367-3674 (2013). DOI: 10.1039/C3TA10257B

“Electrical Properties of Amorphous Carbon Semiconductor Prepared Using a Naphthalene Precursor”
Yasunori Inoue, Mayo Sugano, Shunsuke Kawakami, Masaaki Kitano, Kiyotaka Nakajima, Hideki Kato, Michikazu Hara,* Bull. Chem. Soc. Jpn., 86 [1], 45-50 (2013).DOI: 10.1246/bcsj.20120201

“Orange emission from new (Ba_1-XSr_X)₄Al₂S₇:Eu²⁺ thioaluminate phosphors with visible light excitation”
Takahiko Hasegawa, Hideki Kato, Yuji Takatsuka, Makoto Kobayashi, Hisanori Yamane, Masato Kakihana,* ECS J. Solid State Sci. Technol., 2(2), R3107-R3111 (2013). DOI: 10.1149/2.019302jss

“Synthesis of Spindle and Square Bipyramid-shaped Anatase-type Titanium Dioxide Crystals by a Solvothermal Method using Ethylenediamine”
Makoto Kobayashi, Hideki Kato, Masato Kakihana,* J. Ceram. Soc. Jpn., 120 [11], 494-499 (2012). DOI: 10.2109/jcersj2.120.494

“Synthesis of Zn₂SiO₄:Mn²⁺ by Homogeneous Precipitation using Propylene Glycol-Modified Silane”
Kohei Yoshizawa, Hideki Kato, Masato Kakihana,* J. Mater. Chem., 22 [33], 17272-17277 (2012). DOI: 10.1039/C2JM33056C

“Synthesis of an oxynitride-based green phosphor Ba₃Si₆O₁₂N₂:Eu²⁺ via an aqueous solution process using propylene glycol-modified silane”
Chihiro Yasushita, Hideki Kato, Masato Kakihana,* J. Info. Display, 13 [3], 107-111 (2012). DOI: 10.1080/15980316.2012.692725

“Control of NaAlSiO₄:Eu²⁺ photoluminescence properties by charge-compensated aliovalent element substitutions”
Jihae Kim, Hideki Kato, Masato Kakihana,* J. Info. Display, 13 [3], 97-100 (2012). DOI: 10.1080/15980316.2012.691079

“Structure and Catalysis of Cellulose-Derived Amorphous Carbon Bearing SO₃H Groups”
Kiichi Fukuhara, Kiyotaka Nakajima, Masaaki Kitano, Hideki Kato, Shigenobu Hayashi, Michikazu Hara,* ChemSusChem, 4 [6], 778–784 (2011). DOI: 10.1002/cssc.201000431

“Hydrothermal synthesis of hierarchical TiO₂ microspheres using a novel titanium complex coordinated by picolinic acid”
Quang Duc Truong, Makoto Kobayashi, Hideki Kato, Masato Kakihana,* J. Ceram. Soc. Jpn., 119 [6], 513-516 (2011). DOI: 10.2109/jcersj2.119.513

“SO₃H-bearing mesoporous carbon with highly selective catalysis”
Satoshi Suganuma, Kiyotaka Nakajima, Masaaki Kitano, Hideki Kato, Asako Tamura, Hidesato Kondo, Shinichiro Yanagisawa, Shigenobu Hayashi, Michikazu Hara,* Microporous Mesoporous Mater., 143 [2-3], 443–450 (2011). DOI: 10.1016/j.micromeso.2011.03.028

“Novel Stannite-type Complex Sulfide Photocatalysts A^I₂-Zn-A^IV-S₄ (A^I=Cu and Ag; A^IV= Sn and Ge) for Hydrogen Evolution under Visible-light Irradiation”
Issei Tsuji, Yoshiki Shimodaira, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* Chem. Mater., 22 [4], 1402-1409 (2010). DOI: 10.1021/cm9022024

“A Simple Preparation Method of Visible-Light-Driven BiVO₄ photocatalysts from Oxide Starting Materials (Bi₂O₃ and V₂O₅) and Their Photocatalytic Activities”
Akihide Iwase, Hideki Kato, Akihiko Kudo,* J. Solar Energy Eng., 132 [2], 021106 (2010). DOI: 10.1115/1.4001172

“Synthesis and Luminescence Properties of a Cyan-blue Thiosilicate-based Phosphor SrSi₂S₅:Eu²⁺”
Masayoshi Nakamura, Hideki Kato, Yuji Takatsuka, Valery Petrykin, Satoko Tezuka, Masato Kakihana,* J. Info. Display, 11 [4], 135–139 (2010). DOI: 10.1080/15980316.2010.9665840

“Structure and Acid Catalysis of Mesoporous Nb₂O₅•nH₂O”
Kiyotaka Nakajima, Tsuyoshi Fukui, Hideki Kato, Masaaki Kitano, Junko N. Kondo, Shigenobu Hayashi, Michikazu Hara,* Chem. Mater.,22 [11], 3332–3339 (2010). DOI: 10.1021/cm100391q

“Hydrolysis of Cellulose by a Solid Acid Catalyst under Optimal Reaction Conditions”
Daizo Yamaguchi, Masaaki Kitano, Ssatoshi Suganuma, Kiyotaka Nakajima, Hideki Kato, Michikazu Hara,* J. Phys. Chem. C, 113 [8], 3181–3188 (2009). DOI: 10.1021/jp808676d

“Adsorption-Enhanced Hydrolysis of b-1,4-Glucan on Graphene-Based Amorphous Carbon Bearing SO₃H, COOH, and OH Groups”
Masaaki Kitano, Daizo Yamaguchi, Satoshi Suganuma, Kiyotaka Nakajima, Hidkei Kato, Shigenobu Hayashi, Michikazu Hara,* Langmuir, 25 [9], 5068–5075 (2009). DOI: 10.1021/la8040506

“Water splitting into H₂ and O₂ over niobate and titanate photocatalysts with (111) plane-type layered perovskite structure”
Yugo Miseki, Hideki Kato, Akihiko Kudo,* Energy Environ. Sci.,2 [3], 316–314 (2009). DOI: 10.1039/b818922f

“Time-Resolved Infrared Absorption Study of NaTaO₃ Photocatalysts Doped with Alkali Earth Metals”
Motoji Maruyama, Akihide Iwase, Hideki Kato, Akihiko Kudo, Hiroshi Onishi,* J. Phys. Chem. C,113 [31], 13918–13923 (2009). DOI: 10.1021/jp903142n

“The Effect of Alkaline Earth Metal Ion Dopants on Photocatalytic Water Splitting by NaTaO₃ Powder”
Akihide Iwase, Hideki Kato, Akihiko Kudo,* ChemSusChem,2 [9], 873–877 (2009). DOI: 10.1002/cssc.200900160

“Photocatalytic Activity of Layered Titanates and Niobates Ion-Exchanged with Sn²⁺ under Visible Light Irradiation”
Yasuhiro Hosogi, Hideki Kato, Akihiko Kudo,* J. Phys. Chem. C,112 [45], 17678–17682 (2008). DOI: 10.1021/jp805693j

“Hydrolysis of Cellulose by Amorphous Carbon Bearing SO₃H, COOH, and OH Groups”
Satoshi Suganuma, Kiyotaka Nakajima, Masaaki Kitano, Daizo Yamaguchi, Hideki Kato, Sigenobu Hayashi, Michikazu Hara,* J. Am. Chem. Soc., 130 [38], 12787–12793 (2008). DOI: 10.1021/ja803983h

“The effect of co-catalyst for Z-scheme photocatalysis systems with an Fe³⁺/Fe²⁺ electron mediator on overall water splitting under visible light irradiation”
Yasuyoshi Sasaki, Akihide Iwase, Hideki Kato, Akihiko Kudo,* J. Catal., 259 [1], 133–137 (2008). DOI: 10.1016/j.jcat.2008.07.017

“Visible light response of AgLi_1/3M_2/3O₂ (M = Ti and Sn) synthesized from layered Li₂MO₃ using molten AgNO₃”
Yasuhiro Hosogi, Hideki Kato, Akihiko Kudo,* J. Mater. Chem., 18 [6], 647–653 (2008). DOI: 10.1039/b715679k

“Role of Sn²⁺ in the Band Structure of SnM₂O₆ and Sn₂M₂O₇ (M = Nb and Ta) and Their Photocatalytic Properties”
Yasuhiro Hosogi, Yoshiki Shimodaira, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* Chem. Mater., 20 [4], 1299–1307 (2008). DOI: 10.1021/cm071588c

“Photoinduced Dynamics of TiO₂ Doped with Cr and Sb”
Toshitatsu Ikeda, Tomonori Nomoto, Kazuo Eda, Yasuhisa Mizutani, Hideki Kato, Akihiko Kudo, Hiroshi Onishi,* J. Phys. Chem. C, 112 [4], 1167–1173 (2008). DOI: 10.1021/jp0752264

“Role of Iron Ion Mediator on Photocatalytic Overall Water Splitting under Visible Light Irradiation using Z-Scheme Systems”
Hideki Kato, Yasuyoshi Sasaki, Akihide Iwase, Akihiko Kudo,* Bull. Chem. Soc. Jpn.,80 [12], 2457–2464 (2007). DOI: 10.1246/bcsj.80.2457

“Photocatalytic Properties of HCa₂Nb₃O₁₀ Prepared by Polymerizable Complex Method”
Yohichi Yamashita, Kazuaki Hyuga, Valery Petrykin, Masato Kakihana,* Masahiro Yoshimura, Kazunari Domen, Hideki Kato, Akihiko Kudo, J. Ceram. Soc. Jpn., 115 [8] 511–513 (2007). DOI: 10.2109/jcersj2.115.511

“Photocatalytic O₂ Evolution of Rhodium and Antimony-Codoped Rutile-Type TiO₂ under Visible Light Irradiation”
Ryo Niishiro, Ryoko Konta, Hideki Kato, Wan-Jae Chun, Kiyotaka Asakura, Akihiko Kudo,* J. Phys. Chem. C,111 [46], 17420–17426 (2007). DOI: 10.1021/jp074707k

“Investigations of Electronic Structures and Photocatalytic Activities under Visible Light Irradiation of Lead Molybdate Replaced with Chromium(VI)”
Yoshiki Shimodaira, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* Bull. Chem. Soc. Jpn.,80 [5], 885–893 (2007). DOI: 10.1246/bcsj.80.885

“Photophysical Properties and Photocatalytic Activities of Bismuth Molybdates under Visible Light Irradiation”
Yoshiki Shimodaira, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* J. Phys. Chem. B, 110 [36], 17790–17797 (2006). DOI: 10.1021/jp0622482

“Water Splitting into H₂ and O₂ over Ba₅Nb₄O₁₅ Photocatalysts with Layered Perovskite Structure Prepared by Polymerizable Complex Method”
Yugo Miseki, Hideki Kato, Akihiko Kudo,* Chem. Lett.., 35 [9], 1052–1053 (2006). DOI: 10.1246/cl.2006.1052

“Time-Resolved Infrared Spectroscopy of K₃Ta₃B₂O₁₂ Photocatalysts for Water Splitting”
Toshitatsu Ikeda, Satoru Fujiyoshi, Hideki Kato, Akihiko Kudo, Hiroshi Onishi,* J. Phys. Chem. B, 110 [15], 7883–7886 (2006). DOI: 10.1021/jp057536x

“Nanosized Au particles as an efficient cocatalyst for photocatalytic overall water splitting”
Akihide Iwase, Hideki Kato, Akihiko Kudo,* Catal. Lett.,108 [1–2], 7–10 (2006). DOI: 10.1007/s10562-006-0030-1

“Photocatalytic Hydrogen Evolution on ZnS-CuInS₂-AgInS₂ Solid Solution Photocatalysts with Wide Visible Absorption Bands”
Issei Tsuji, Hideki Kato, Akihiko Kudo,* Chem. Mater., 18 [7], 1969–1975 (2006). DOI: 10.1021/cm0527017

“Synthesis of SnNb₂O₆ Nano-plates and Their Photocatalytic Properties”
Yasuhiro Hosogi, Hideki Kato, Akihiko Kudo,* Chem. Lett., 35 [6] 578–579 (2006). DOI: 10.1246/cl.2006.578

“Highly Efficient Water Splitting over K₃Ta₃B₂O₁₂ Photocatalyst without Loading Cocatalyst”
Toshiyasu Kurihara, Hiroaki Okutomi, Yugo Miseki, Hideki Kato, Akihiko Kudo,* Chem. Lett., 35 [3], 274–275 (2006). DOI: 10.1246/cl.2006.274

“The relationship between photocatalytic activity and crystal structure in strontium tantalates”
Kohtaro Yoshioka, Valery Petrykin, Masato Kakihana,* Hidkei Kato, Akihiko Kudo, J. Catal.,232 [1], 102–107 (2005). DOI: 10.1016/j.jcat.2005.02.021

“A Novel Photodeposition Method in the Presence of Nitrate Ions for Loading of an Iridium Oxide Cocatalyst for Water Splitting”
Akihide Iwase, Hideki Kato, Akihiko Kudo,* Chem. Lett., 34 [7], 946–947 (2005). DOI: 10.1246/cl.2005.946

“Nickel and either tantalum or niobium-codoped TiO₂ and SrTiO₃ photocatalysts with visible-light response for H₂ or O₂ evolution from aqueous solutions”
Ryo Niishiro, Hideki Kato, Akihiko Kudo*, Phys. Chem. Chem. Phys., 7 [10], 2241–2245 (2005). DOI: 10.1039/b502147b

“Visible-Light Induced H₂ Evolution from an Aqueous Solution Containing Sulfide and Sulfite over ZnS-CuInS₂-AgInS₂ Solid-Solution Photocatalyst”
Issei Tsuji, Hideki Kato, Akihiko Kudo,* Angew. Chem. Int. Ed., 44 [23], 3565–3568 (2005). DOI: 10.1002/anie.200500314

“Photocatalytic H₂ Evolution under Visible-Light Irradiation over Band-Structure-Controlled (CuIn)_xZn_2(1-x)S₂ Solid Solutions”
Issei Tsuji, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* J. Phys. Chem. B, 109 [15], 7323–7329 (2005). DOI: 10.1021/jp044722e

“Water Splitting into H₂ and O₂ over Cs₂Nb₄O₁₁ Photocatalyst”
Yugo Miseki, Hideki Kato, Akihiko Kudo,* Chem. Lett. 34 [1], 54–55 (2005). DOI: 10.1246/cl.2005.54

“Electrochemical approach to evaluate the mechanism of photocatalytic water splitting on oxide photocatalysts”
Yasumichi Matsumoto,* Ugur Unal, Noriyuki Tanaka, Akihiko Kudo, Hideki Kato, J. Solid State Chem., 177 [11], 4205–4212 (2004). DOI: 10.1016/j.jssc.2004.08.001

“Formation of Surface Nano-Step Structures and Improvement of Photocatalytic Activities of NaTaO₃ by Doping of Alkaline Earth Metal Ions”
Akihide Iwase, Hideki Kato, Hiroaki Okutomi, Akihiko Kudo,* Chem. Lett. 33 [10], 1260–1261 (2004). DOI: 10.1246/cl.2004.1260

“Construction of Z-scheme Type Heterogeneous Photocatalysis Systems for Water Splitting into H₂ and O₂ under Visible Light Irradiation”
Hideki Kato, Mikihiro Hori, Ryoko Konta, Yoshiki Shimodaira, Akihiko Kudo,* Chem. Lett., 33 [10], 1348–1349 (2004). DOI: 10.1246/cl.2004.1348

“Photophysical and Photocatalytic Properties of Molybdates and Tungstates with a Scheelite Structure”
Hideki Kato, Naoko Matsudo, Akihiko Kudo,* Chem. Lett., 33 [9], 1216–1217 (2004). DOI: 10.1246/cl.2004.1216

“Photocatalytic H₂ Evolution Reaction from Aqueous Solutions over a Band Structure-Controlled (AgIn)_XZn_2(1-X)S₂ Solid Solution Photocatalysts with Visible-Light Response and Their Surface Nanostructures”
Issei Tsuji, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* J. Am. Chem. Soc., 126 [41], 13406–13413 (2004). DOI: 10.1021/ja048296m

“Photodegradation of 4-n-nonylphenol and natural estrogens using heterogeneous visible-light-driven AgNbO₃ or BiVO₄ photocatalyst”
Shigeru Kohtani,* Noritaka Yamamoto, Kinuyo Kitajima, Akihiko Kudo, Hidkei Kato, Kunihiro Tokumura, Kazuichi Hayakawa, Ryoichi Nakagaki, Photo/Electrochem. Photobiol. Environ. Energy and Fuel, 2004, 173–184.

“Photocatalytic Activities of Noble Metal Ion Doped SrTiO₃ under Visible Light Irradiation”
Ryoko Konta, Tatsuya Ishii, Hideki Kato, Akihiko Kudo,* J. Phys. Chem. B., 108 [26], 8992–8995 (2004). DOI: 10.1021/jp049556p

“Energy Structure and Photocatalytic Activity of Niobates and Tantalates Containing Sn(II) with a 5s² Electron Configuration”
Yasuhiro Hosogi, Kentaro Tanabe, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* Chem. Lett.., 33 [1], 28–29 (2004). DOI: 10.1246/cl.2004.28

“H₂ evolution from an aqueous methanol solution on SrTiO₃ photocatalysts codoped with chromium and tantalum ions under visible light irradiation”
Tatsuya Ishii, Hideki Kato, Akihiko Kudo,* J. Photochem. Photobiol. A, 163 [1–2], 181–186 (2004). DOI: 10.1016/S1010-6030(03)00442-8

“Photodynamics of NaTaO₃ Catalysts for Efficient Water Splitting”
Akira Yamakata, Takaaki Ishibashi, Hideki Kato, Akihiko Kudo, Hiroshi Onishi,* J. Phys. Chem. B., 107 [51], 14383–14387 (2003). DOI: 10.1021/jp036473k

“Photocatalytic water splitting into H₂ and O₂ over various tantalate photocatalysts”
Hideki Kato, Akihio Kudo,* Catal. Today, 78 [1-4], 561-569 (2003). DOI: 10.1016/S0920-5861(02)00355-3

“Photophysical properties and photocatalytic activities under visible light irradiation of silver vanadates”
Ryoko Konta, Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* Phys. Chem. Chem. Phys., 5,3061–3065 (2003). DOI: 10.1039/b300179b

“Highly Efficient Water Splitting into H₂ and O₂ over Lanthanum-Doped NaTaO₃ Photocatalysts with High Crystallinity and Surface Nanostructure”
Hideki Kato, Kiyotaka Asakura, Akihiko Kudo,* J. Am. Chem. Soc., 125 [10], 3082–3089 (2003). DOI: 10.1021/ja027751g

“H₂ Evolution from Aqueous Potassium Sulfite Solutions under Visible Light Irradiation over a Novel Sulfide Photocatalyst NaInS₂ with a Layered Structure”
Akihiko Kudo,* Akira Nagane, Issei Tsuji, Hideki Kato, Chem. Lett., No.9, 882–883 (2002). DOI: 10.1246/cl.2002.882

“AgInZn₇S₉ solid solution photocatalyst for H₂ evolution from aqueous solutions under visible light irradiation”
Akihiko Kudo,* Issei Tsuji, Hideki Kato, Chem. Commun., No.17, 1958–1959 (2002). DOI: 10.1039/b204259b

“Role of Ag⁺ Ions in the Band Structures and Photocatalytic Properties of AgMO₃ (M: Ta and Nb) with the Perovskite Structure”
Hideki Kato, Hisayoshi Kobayashi, Akihiko Kudo,* J. Phys. Chem. B, 106 [48], 12441–12447 (2002). DOI: 10.1021/jp025974n

“Visible-Light-Response and Photocatalytic Activities of TiO₂ and SrTiO₃ Photocatalysts Codoped with Antimony and Chromium”
Hideki Kato, Akihiko Kudo,* J. Phys. Chem. B, 106 [19], 5029–5034 (2002). DOI: 10.1021/jp0255482

“Photocatalytic reduction of nitrate ions over tantalate photocatalysts”
H. Kato, A. Kudo*, Phys. Chem. Chem. Phys., 4 [12], 2833–2838 (2002). DOI: 10.1039/b110511f

“Polymerizable Complex Synthesis of Pure Sr₂Nb_XTa_2-XO₇ Solid Solutions with High Photocatalytic Activities for Water Decomposition into H₂ and O₂”
Mayu Yoshino, Masato Kakihana,* WooSeok Cho, Hideki Kato, Akihiko Kudo, Chem. Mater., 14 [8], 3369–3376 (2002). DOI: 10.1021/cm0109037

“Energy structure and photocatalytic activity for water splitting of Sr₂(Ta_1-XNb_X)₂O₇ solid solution”
Hideki Kato, Akihiko Kudo,* J. Photochem. Photobiol. A, 145 [1–2], 129–133 (2001). DOI: 10.1016/S1010-6030(01)00574-3

“Selective Preparation of Monoclinic and Tetragonal BiVO₄ with Scheelite Structure and Their Photocatalytic Properties”
Saimi Tokunaga, Hideki Kato, Akihiko Kudo,* Chem. Mater., 13 [12], 4624–4628 (2001). DOI: 10.1021/cm0103390

“Water Splitting into H₂ and O₂ on Alkali Tantalate Photocatalysts ATaO₃ (A: Li, Na, and K)”
Hideki Kato, Akihiko Kudo,* J. Phys. Chem. B, 105 [19], 4285–4292 (2001). DOI: 10.1021/jp004386b

“Effect of lanthanide-doping into NaTaO₃ photocatalysts for efficient water splitting”
Akihiko Kudo,* Hideki Kato, Chem. Phys. Lett., 331 [5/6] 373–377 (2000). DOI: 10.1016/S0009-2614(00)01220-3

“Photocatalytic Water Splitting into H₂ and O₂ over K₂LnTa₅O₁₅ Powder”
Akihiko Kudo,* Hiroaki Okutomi, Hideki Kato, Chem. Lett., 1212–1213 (2000). DOI: 10.1246/cl.2000.1212

“Water Splitting into H₂ and O₂ on New Sr₂M₂O₇ (M=Nb and Ta) Photocatalysts with Layered Perovskite Structures: Factors Affecting the Photocatalytic Activity”
Akihiko Kudo,* Hideki Kato, Seira Nakagawa, J. Phys. Chem. B, 104 [3], 571–575 (2000). DOI: 10.1021/jp9919056

“A Novel Aqueous Process for Preparation of Crystal Form-Controlled and Highly Crystalline BiVO₄ Powder from Layered Vanadates at Room Temperature and Its Photocatalytic and Photophysical Properties”
Akihiko Kudo,* Keiko Omori, Hideki Kato, J. Am. Chem. Soc., 121 [49], 11459–11467 (1999). DOI: 10.1021/ja992541y

“Photocatalytic Decomposition of Pure Water into H₂ and O₂ over SrTa₂O₆ Prepared by a Flux Method”
Hideki Kato, Akihiko Kudo,* Chem. Lett., 1207–1208 (1999). DOI: 10.1246/cl.1999.1207

“Overall Water Splitting into H₂ and O₂ under UV Irradiation on NiO-loaded ZnNb₂O₆ Photocatalysts Consisting of d¹⁰ and d⁰ Ions”
Akihiko Kudo,* Seira Nakagawa, Hideki Kato, Chem. Lett., 1197–1198 (1999). DOI: 10.1246/cl.1999.1197

“Ultraviolet Luminescence of Rb₄Ta₆O₁₇ with a Layered Structure”
Akihiko Kudo,* Tatsuo Shibata, Hideki Kato, Chem. Lett., 959-960 (1999). DOI: 10.1246/cl.1999.959

“Highly efficient decomposition of pure water into H₂ and O₂ over NaTaO₃ photocatalysts”
Hideki Kato, Akihiko Kudo,* Catal. Lett., 58 [2-3], 153–155 (1999). DOI: 10.1023/A:1019082001809

“New tantalate photocatalysts for water decomposition into H₂ and O₂”
Hideki Kato, Akihiko Kudo,* Chem. Phys. Lett., 295 [5–6], 487–492 (1998). DOI: 10.1016/S0009-2614(98)01001-X

“Photocatalytic O₂ evolution under visible light irradiation on BiVO₄ in aqueous AgNO₃ solution”
Akihiko Kudo,* Kazuhiro Ueda, Hideki Kato, Ikko Mikami, Catal. Lett., 53 [3/4], 229–230 (1998). DOI: 10.1023/A:1019034728816

“Photocatalytic Decomposition of Water into H₂ and O₂ over Novel Photocatalyst K₃Ta₃Si₂O₁₃ with Pillared Structure Consisting of Three TaO₆ Chains”
Akihiko Kudo,* Hideki Kato, Chem. Lett., 867–868 (1997). DOI: 10.1246/cl.1997.867

“Photocatalytic Activities of Na₂W₄O₁₃ with Layered Structure”
Akihiko Kudo,* Hideki Kato, Chem. Lett., 421–422 (1997). DOI: 10.1246/cl.1997.421