Photochemical synthesis of composites consisting of multi-component mixed oxides and semiconductors and their application in photocatalysis

2015 Fiscal Year Final Research Report

• Project/Area Number: 25709078
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Catalyst/Resource chemical process
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Maeda Kazuhiko 東京工業大学, 理工学研究科, 准教授 (40549234)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 光触媒 / 助触媒 / 水の分解 / 水素製造 / 人工光合成 / ナノ粒子

Outline of Final Research Achievements

Metal species that can be photodeposited with Cr on the surface of strontium titanate powder were explored. As a result, it was found that Au and Pd fit the bill, and worked as cocatalysts for hydrogen evolution in photocatalytic overall water splitting when mixed with Cr species. Detailed investigations on the Pd/Cr system indicated that the photocatalytic activity for overall water splitting depended strongly on the structure and electronic state of the Pd/Cr multicomponent cocatalyst. The mechanism by which the Pd/Cr nanoparticles were formed was also discussed on the basis of experimental results.

Free Research Field

光触媒