Development of high performance thin film fabrication process for proton conductive oxide by precise reaction control

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H02311
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Metal making/Resorce production engineering
• Research Institution: Kyoto University
• Principal Investigator: Uda Tetsuya 京都大学, 工学研究科, 教授 (80312651)
• Co-Investigator(Renkei-kenkyūsha): HAN DONGLIN 京都大学, 工学研究科, 特定准教授 (40727567) ; HATADA NAOYUKI 京都大学, 工学研究科, 助教 (00712952)
• Research Collaborator: MAJIMA MASATOSHI ; OTANI Yuki ; UENO KATSUHIRO ; ONISHI TAKAYUKI ; NODA YOHEI
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 燃料電池 / セラミックスプロセス / プロトン伝導体

Outline of Final Research Achievements

Y-doped BaZrO3 is expected for next generation fuel cells. However, Ni diffusion during co-sintering with the electrode material is now serious problem. We studied various diffusion prevention method. As the results, the promising method is recovering the performance by diffusing Ni out to the grain boundary after co-sintering by reduction treatment, because Ni works as a sintering aid. In addition, it is clarified that 20% of Y-doped BaZrO3, which is often used, does not equilibrate with NiO was obtained.

Free Research Field

材料工学