Application of a composite electrolyte in a solidacid fuel cell system: A micro-arc oxidation alumin-仪器技术资料-阿美特克科学仪器部-普林斯顿及输力强电化学手机版

Application of a composite electrolyte in a solidacid fuel cell system: A micro-arc oxidation alumin

时间：2014-08-25 阅读：2998

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.