Surface controlled photocatalyst for realization of high efficient water oxidation

2015 Fiscal Year Final Research Report

• Project/Area Number: 26810104
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Energy-related chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: MISEKI YUGO 国立研究開発法人産業技術総合研究所, 太陽光発電研究センター, 主任研究員 (70645879)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 光触媒 / レドックス / 水の酸化反応 / 水素 / 太陽光エネルギー変換 / 酸化物半導体

Outline of Final Research Achievements

In this research, the suppression effect for undesirable backward reaction has been evaluated using shape controlled photocatalyst particles. As a result, it was found that the reaction selectivity of water and Fe（II) for photo-generated holes is drastically changed depending on the type of the exposed crystal facets, although the Fe（II) oxidation proceeds preferentially instead of the water oxidation due to thermodynamically advantageous. Thus, it has been demonstrated that the control of particle shape can be an efficient method to design high efficient photocatalysts. Moreover, the developments of novel photocatalysts and high performance technologies have been also conducted. We successfully developed various attractive materials.

Free Research Field

光機能性材料