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- W87158465 abstract "Introduction and approach Ceramic-metal composites (cermets) are typical materials for solid oxide fuel cell (SOFC) anodes [1]. Nickel/yttriastabilized zirconia (Ni/YSZ) cermets have been used since 35 years and are today standard materials for hightemperature SOFCs. Due to their technical importance, they have been studied extensively both in experiment [2,3] and theory [4]. We present the development, validation and application of a multi-scale model for the detailed description of SOFCs with Ni/YSZ cermet anodes for the identification of the physicochemical loss processes, as seen in impedance spectra and polarization curves. The model consists of an elementary kinetic description of the electrochemistry including the the electrical double layer at the electrode/electrolyte interface of the cermet anode, a homogenized description of charge and gas-phase transport in the electrodes as well as a macroscopic description of convective and diffusive mass transport in the gas phase above the electrodes. This study thus allows for a modelbased interpretation of the impedance spectra and polarization behavior of SOFCs with cermet anodes." @default.
- W87158465 created "2016-06-24" @default.
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- W87158465 date "2009-01-01" @default.
- W87158465 modified "2023-09-26" @default.
- W87158465 title "Understanding the electrochemical characteristics of solid oxide fuel cells with Ni/YSZ cermet anodes" @default.
- W87158465 hasPublicationYear "2009" @default.
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