Anomalous low-temperature proton conductivity enhancement in a novel protonic nanocomposite.
A novel protonic ceramic composite is synthesized that comprises nanoscale nickel metal films partially decorating the grain boundaries of the proton-conducting ceramic, BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb). Low-temperature proton conductivity improvements of up to 46× vs. a control are observed, suggesting a novel method to enhance ion conductivity in polycrystalline materials.
Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO 80401, USA. jhtongm@gmail.com rohayre@mines.edu.
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Clark
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J
Tong
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Morrissey
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Almansoori
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Reimanis
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O'Hayre