Characterization and Modeling of Infiltrated SOFC Cathode

来源 :The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会) | 被引量 : 0次 | 上传用户：mqkxxmvo

【摘要】

：

　　Infiltration has been widely employed to fabricate composite electrodes in SOFC.However,few systematic investigations exist on oxygen reduction and reaction

【作者】

：

YihongLI;MingyangGONG;

【机构】

：

Mechanical & Aerospace Engineering Department,West Virginia University,Morgantown,U.S.A.

【出处】

：

The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)

【发表日期】

：

2014年期

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　　Infiltration has been widely employed to fabricate composite electrodes in SOFC.However,few systematic investigations exist on oxygen reduction and reaction(ORR)mechanisms in infiltrated SOFC cathodes.In this presentation,we report our studies on several key issues related to infiltrated cathode:Characterizing Surface Exchange Behavior: The oxygen surface exchange coefficient(k)and diffusivity(D)values for various mixed-ionic electronic conductors(MIECs)have been widely reported in the literatures,by either electrical conductivity relaxation(ECR)or isotope exchange(IE)methods.

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