The effects of Cu, Zn, and Mn on CeO₂ in ethanol steam reforming for hydrogen production were evaluated. Solid solution catalysts were analyzed by Brunauer‐Emmett‐Teller method, X‐ray diffraction, temperature‐programmed reduction, scanning electron microscopy, and energy dispersive X‐ray. CeMn oxide showed the highest conversion and hydrogen yield. The entrance of Mn to the ceria lattice could enhance the catalyst reducibility. An increase of the Ce/Mn ratio led to high methane selectivity. Mn conducted the reaction to more CO₂ generation and was also an effective metal for ethanol steam reforming reaction by adsorbing steam and the ability of oxygen mobility. Ce_0.3Mn_0.7 oxide provided moderate ethanol conversion and hydrogen yield. The catalyst exhibited higher conversion but lower hydrogen yield by adding Ni.

中文翻译：

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CexMyO2（M：Cu，Zn和Mn）固溶催化剂上的乙醇蒸汽重整

评价了乙醇蒸汽重整制氢过程中Cu，Zn和Mn对CeO _2的影响。通过Brunauer-Emmett-Teller方法，X射线衍射，程序升温还原，扫描电子显微镜和能量色散X射线分析固溶催化剂。氧化铈锰显示出最高的转化率和氢气产率。Mn进入二氧化铈晶格可提高催化剂的还原能力。Ce / Mn比的增加导致甲烷选择性高。Mn使反应产生更多的CO _2，并且通过吸附蒸汽和氧迁移能力，它也是用于乙醇蒸汽重整反应的有效金属。铈_0.3锰_0.7该氧化物提供了适度的乙醇转化率和氢气产率。通过添加Ni，该催化剂表现出较高的转化率但较低的氢产率。