Bondability and electrical conductivity of proton conducting electrolytes

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420738
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Meijo University
• Principal Investigator: Ban Eriko 名城大学, 理工学部, 教授 (20181042)
• Co-Investigator(Kenkyū-buntansha): Ikebe Yumiko 名城大学, 理工学部, 助教 (50553822)
• Research Collaborator: Tabuchi Masayoshi ; Suzuki Daiki ; Fukunaga Tuguto ; Takayasu Aoi
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 電解質材料 / Niサーメット電極 / 接合技術

Outline of Final Research Achievements

Solid oxide fuel cell (SOFC) is very attractive due to high energy conversion efficiency and low environmental load. It is important to improve the bondability of electrode and electrolyte for realization of a high power generation efficiency of the fuel cell. The purpose of this study is an establishment of fabrication technique of Ni-cermet consisting of Ni and electrolyte materials and a characterization in the operating environment of SOFC. The cermet samples were prepared by changing the sintering temperature and the mixing ratio of NiO and electrolyte, such as BCO andBZO proton conductors. After heat-treatment in hydrogen atmosphere, Ni-BaZr0.91Y0.08Co0.01O3-δ cermet preferably showed higher than 30% open pore ratio for electrode reaction. Behavior of the electrical conductivity of these samples thus processed was desirable for the fuel electrode. The performance of the conductivity of Ni-cermet obtained this experiment was extremely enhanced in comparison to previous work.

Free Research Field

機能性セラミックス材料