A micro-arc oxidation alumina (MOA) support filled with a CsH2PO4 proton conductor was
investigated as an inorganic composite electrolyte for a H2/O2 solid-acid fuel cell (SAFC). The
MOA support was polycrystalline and contained a- and g-Al2O3 phases; while, the proton
conductorCsH2PO4 formed aninterlacednetwork within theMOAsupport.The single-module
SAFC using the fabricated MOA/CsH2PO4 membrane delivered a peak power of
w38.5 m W cm2 and a proton conductivity of w2.1 m S cm1 at a low temperature (25 C).
Comparedtoa SAFCusingananodic aluminamembranecomposite electrolyte (AAM/CsH2PO4
SAFC), which displayed rapid degradation, the SAFC using the MOA/CsH2PO4 composite
electrolyte showed improved stability with cycling. This was attributed to the crystalline a-
Al2O3 phase that was part of the MOA support that had increased the chemical resistance.
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阿美特克科學儀器部-普林斯頓及輸力強電化學 |
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