Development of thermal- and photo-chemical hybrid hydrogen production process

2014 Fiscal Year Final Research Report

• Project/Area Number: 24686107
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Energy engineering
• Research Institution: Kyushu University
• Principal Investigator: HAGIWARA Hidehisa 九州大学, 工学(系)研究科(研究院), 助教 (30574793)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ISプロセス / 水素 / 光触媒 / 水分解

Outline of Final Research Achievements

Recently, hydrogen production from water decomposition has been actively studied to solve the energy issues. IS process, which is one of the thermochemical hydrogen production processes, consists of three chemical reactions: sulfuric acid decomposition, hydrogen iodide (HI) decomposition, and bunsen reaction. In this study, photocatalytic HI decomposition was investigated to improve reaction rate of the HI decomposition. This study revealed that potassium tantalate (KTaO3) showed relatively high photocatalytic activity for HI decomposition and Pt and Pd cocatalysts effectively improve the photocatalytic HI decomposition activity because of the acceleration of iodide ion oxidation.

Free Research Field

触媒化学、光化学