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Fine‐microstructure mediated efficient hydrogen oxidation was demonstrated on nickel/yttria‐stabilised zirconia (Ni/YSZ) anode fabricated from NiO/YSZ nanocomposite particles, synthesised via a novel co‐precipitation method using YSZ nanoparticles with the average size of 3 nm. Transmission electron microscopy image revealed that nanocomposite particles calcined at 600 °C consisted of homogeneously distributed NiO and YSZ nanocrystals, approximately 5 nm large. The Ni/YSZ anode was fabricated by sintering the screen‐printed nanocomposites at 1,300 °C and their subsequent reduction. The anode had a uniform porous microstructure consisting of fine grains in the range of 200–300 nm, and exhibited quite low area‐specific resistance (ASR) of 2.29, 0.43 and 0.15 Ω cm2 at 600, 700 and 800 °C, respectively.
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Sato et al. (2010) studied this question.
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