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A high-performance SDC-infiltrated nanoporous silver cathode with superior thermal stability for low temperature solid oxide fuel cells

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Abstract

Superior thermal stability of a nanoporous silver thin film cathode is enabled by covering the silver nanoparticles with a thin layer of samarium-doped ceria (SDC). A simple solution infiltration process followed by post heat treatment at 500 °C is applied to coat a thin SDC layer over inkjet-printed silver nanoparticle thin films to physically confine the silver nanoparticles to prevent thermal agglomeration. The electrochemical performance of the SDC-infiltrated silver cathode also surpasses that of both a non-infiltrated silver cathode and a typical sputtered nanoporous platinum cathode. A 60 hour fuel cell current stability test using the SDC-infiltrated silver cathode shows only 12.4% current degradation, which is significantly lower than 73.6% degradation from the fuel cell using a non-infiltrated silver cathode.

Graphical abstract: A high-performance SDC-infiltrated nanoporous silver cathode with superior thermal stability for low temperature solid oxide fuel cells

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Publication details

The article was received on 02 Feb 2018, accepted on 25 Mar 2018 and first published on 26 Mar 2018


Article type: Communication
DOI: 10.1039/C8TA01104D
Citation: J. Mater. Chem. A, 2018, Advance Article
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    A high-performance SDC-infiltrated nanoporous silver cathode with superior thermal stability for low temperature solid oxide fuel cells

    T. Lee, L. Fan, C. Yu, F. E. Wiria and P. Su, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA01104D

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