Development of fast hydrogen production/storage system using interfacial ionic transport

2016 Fiscal Year Final Research Report

• Project/Area Number: 25281061
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Design and evaluation of sustainable and environmental conscious system
• Research Institution: The University of Tokyo
• Principal Investigator: OTOMO Junichiro 東京大学, 新領域創成科学研究科, 准教授 (90322065)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 低炭素社会 / 化学エネルギー貯蔵 / イオン伝導体 / 水素生成

Outline of Final Research Achievements

Fast hydrogen energy conversion systems were developed in combination with solid state ionics and chemical-looping technology. For chemical energy conversion cycles: (1) reduction reaction (i.e., chemical energy storage) (2) hydrogen production (3) total oxidation (heat recovery and regeneration of oxygen carriers), we developed a thermochemical-looping system and an electrochemical-looping system. Composite oxygen carriers consisting of an oxide ion electron mixed conductor and a metal oxide were synthesized successfully. Thus we obtained oxygen carriers with good performance on reduction reaction in hydrogen and reoxidation in steam. In addition, we developed a novel proton-conducting fuel cell for an electrochemical-looping system, and examined the feasibility of the proposed system.

Free Research Field

電気化学、反応工学