Development of metal-enzyme hybrid electrodes by using a microforming technologies

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630370
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: University of Hyogo
• Principal Investigator: Yamasaki Tohru 兵庫県立大学, 工学研究科, 教授 (30137252)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 水素発生酵素 / 水素発生電極 / ナノポーラス / ナノ結晶組織 / アモルファス構造 / 金属ガラス

Outline of Final Research Achievements

Producing hydrogen by water electrolysis is a promising solution to store the renewable energy. However, water electrolysis requires catalysts containing platinum. Purpose of this study is development of new catalytic electrodes for water electrolysis without platinum, but with bio-molecular catalysts that called hydrogenases. Hydrogenases are enzymes which catalyze the reversible oxidation of dihydrogen into two protons and electrons. However, there are many technological problems, i.e., hydrogenases with their diameter of about 10 nm must be fixed on electrodes in very large quantities. In this study, development of new catalytic electrodes with nanoporous surface structures of nanocrystalline Ni-W alloys by electrodeposition and also Zr-based bulk metallic glasses that may be suitable to fix the hydrogenases in very large quantities. In addition, development of our proposed new liquid-type electrode for producing hydrogen gas that contains large amounts of hydrogenases.

Free Research Field

材料設計学