| Abstract NEMCA effect of OCM was investigated on the Li2OMnO2AgYSZ catalytic membrane in the oxygenpumping reactor.The influence of the steadystate current and reaction temperature on NEMCA effect was investigated,so did the CH4 content in the reaction gas and reaction temperature on the exchange current density when NEMCA took place.The relation of the exchange current density and the active over potential in the transport system was compared to that in the joint system.The results show that the exchange current density in the threephaseboundary is decreased by increasing the content of CH4 in the reaction gas,decreasing reaction temperature and adding small amount oxygen into the reaction gas.Low exchange current density is favorable to the generation of NEMCA effect. |
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1999, Vol. 16 
