Fabrication of High-Performance Oxygen Reduction Electrode Catalysts Using Ionic Liquid-Quantum Beam Irradiation Method

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03591
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Osaka University
• Principal Investigator: Tsuda Tetsuya 大阪大学, 工学研究科, 准教授 (90527235)
• Co-Investigator(Kenkyū-buntansha): 清野 智史 大阪大学, 工学研究科, 准教授 (90432517)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 量子ビーム / 電極触媒 / 燃料電池 / イオン液体

Outline of Final Research Achievements

The nanoparticle fabrication method by the quantum beam (accelerated electron beam, gamma ray, etc.) irradiation to ionic liquid (IL) can produce a wide variety of nanoparticles including unstable metals in aqueous solution without a reducing agent and a stabilizing agent for the produced nanoparticles. However, because IL is usually more expensive than other solvents, using cost-effective ILs like choline-based ones, we investigated the condition for obtaining the nanoparticles similar to those produced in conventional ILs and finally succeeded in finding it. In addition, the method for producing platinum-nickel alloy nanoparticles, which are expected to be one of next-generation oxygen reduction electrocatalysts, and the approach for supporting such nanoparticles to the carbon black surface were successfully established.

Free Research Field

電気化学