Enh anced activity and selectivity of Au/Zn O catalysts contain ing low CuO conte nt for pre ferential o xidation of CO in H۲ rich streams

The preferential oxidation of CO in H۲-rich gas (PRO X) is an ef fective way to purify fe ed for the p olymer-electrolyte-membrane fuel cells (PEM FCs). It has been reported that the Au supported catalysts have prop er activity and selectivity for PRO X within operation range of fuel processor (۸۰-۱۵۰ oC) [۱]. So far, many studies have focused on various supports f or Au catalysts, in order to achievi ng better performance in PROX reaction conditions [۲]. In this work, Au/CuO-Z nO is introduced as a novel catalyst and the effects of Cu O loading on CO conversion and O ۲ selectivity are investigated.

کلیدواژه ها:

PEM fuel cell ، Preferential ox idation ، Au ، CuO ، ZnO.