Artificial Photosynthetic System with Function of Photocatalyst for Hydrogen Evolution

2016 Fiscal Year Final Research Report

• Project Area: Chemical conversion of solar energy by artificial photosynthesis: a breakthrough by fusion of related fields toward realization of practical processes
• Project/Area Number: 24107004
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tokyo University of Science
• Principal Investigator: Akihiko Kudo 東京理科大学, 理学部, 教授 (60221222)
• Co-Investigator(Kenkyū-buntansha): 井上 和仁 神奈川大学, 理学部, 教授 (20221088) ; 酒井 健 九州大学, 理学研究院, 教授 (30235105) ; 加藤 英樹 東北大学, 多元物質科学研究所, 准教授 (60385515)
• Project Period (FY): 2012-06-28 – 2017-03-31
• Keywords: 光触媒 / 水素 / 人工光合成 / 半導体 / 分子触媒 / 窒化物 / ニトロゲナーゼ / シアノバクテリア

Outline of Final Research Achievements

IrO2/SrTiO3:Rh,Sb was developed as a single-particulate photocatalyst for water splitting working under visible light irradiation. Z-scheme systems employing metal sulfide H2-evolving photocatalysts with visible light such as CuGaS2 by combining BiVO4 of an O2-evolving photocatalyst and electron mediators such as metal complexes and reduced graphene oxide was constructed for water splitting. LaTaON2-SrTiO3 of a solid solution photocatalyst with visible light response was also developed. On the other hand, some Co and Ni metal complexes as efficient homogeneous catalysts for H2 production were found. Long-term photobiological hydrogen production was demonstrated using heterocyst-forming cyanobacteria without changing the culture medium.

Free Research Field

触媒化学