Ni-SDC cermet anode for medium-temperature solid oxide fuel cell with lanthanum gallate electrolyte
作者： Xinge Zhang , Satoshi Ohara , Radenka Maric , Kazuo Mukai , Takehisa Fukui
DOI: 10.1016/S0378-7753(99)00293-1
关键词: Inorganic chemistry 、 Sintering 、 Electrolyte 、 Polarization (electrochemistry) 、 Lanthanum oxide 、 Solid oxide fuel cell 、 Chemical engineering 、 Cermet 、 Overpotential 、 Materials science 、 Anode
摘要: The polarization properties and microstructure of Ni-SDC (samaria-doped ceria) cermet anodes prepared from spray pyrolysis (SP) composite powder, element interface diffusion between the anode a La0.9Sr0.1Ga0.8Mg0.2O3−δ (LSGM) electrolyte are investigated as function sintering temperature. sintered at 1250°C displays minimum (with ohmic loss), while 1300°C has best electrochemical overpotential, viz., 27 mV 300 mA cm−2 operating 800°C. loss gradually increases with increase in temperature levels below 1300°C, sharply 1350°C. Electron micrographs show clear grain growth temperatures higher than 1300°C. appears to be optimized which nickel particles form network well-connected SDC finely distributed over surfaces particles. 1350°C severe an apparent electrolyte. is assumed main reason for increment loss, resulting performance. findings suggest that powder near method prepare on LSGM
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