Metal supported solid oxide electrolysis cell for carbon dioxide recycle usage

2019 Fiscal Year Final Research Report

• Project/Area Number: 16H04644
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Energy engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Kato Yukitaka 東京工業大学, 科学技術創成研究院, 教授 (20233827)
• Co-Investigator(Kenkyū-buntansha): 佐伯 功 室蘭工業大学, 大学院工学研究科, 教授 (50235090)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Keywords: 二酸化炭素 / 二酸化炭素再資源化 / 電気分解 / 固体酸化物 / MS-SOEC

Outline of Final Research Achievements

We improved the metal-based solid oxide electrolysis cell (MS-SOEC) to improve electrolysis performance. A large number of micrometer-order pores for gas diffusion were opened in the metal substrate. Atmosphere plasma spray method (APS) was used for the anode and cathode layers of the SOEC body. A CO2 electrolysis test was performed. We confirmed the production of CO and O2 by electrolysis of the target CO2, and demonstrated that the fabricated cell functions as MS-SOEC. It was judged that the research purpose was achieved by the production of the initially planned MS-SOEC and the demonstration of its operation.

Free Research Field

化学工学

Academic Significance and Societal Importance of the Research Achievements

金属基盤固体酸化物電気分解セル（MS-SOEC）でのCO2電界の報告は他に無く、恐らく世界最初の成果と考えられた。なお、反応時の経時変化をSEM,XRD等で観察、測定し、十分な耐久性を確認した。MS-SOECの実証によりCO2の大規模な資源化に道を開いた。