低碳化学与化工2025，Vol.50Issue(2)：25-30,6.DOI:10.12434/j.issn.2097-2547.20240168
金属离子掺杂对Ni基复合氧化物结构调控及其催化甲烷部分氧化反应研究
Study on structure regulation of Ni-based composite oxides by doping metal ions and their application in catalyzing partial oxidation of methane reaction
摘要
Abstract
Doping metal ions can regulate the coordination environment and construct structural defect sites of active metals in the composite metal oxides,and then improve the catalytic performances of composite metal oxides as catalysts.Ni-based composite oxide catalysts by doping Zn,Ce or Fe were prepared by sol-gel method and used in catalyzing partial oxidation of methane(POM)reaction.The crystal structures,structure properties,reduction performances and species chemical states of catalysts were characterized by XRD,N2 physical adsorption/desorption,H2-TPR and XPS and so on.The results show that doping metal ions effectively regulates the distribution of Ni and reactive oxygen species.Among them,doping Ce in Ni0.76Ce0.24Cr2 catalyst enhances the interaction force between Ni and other metals,increases the number of reactive oxygen species on the catalyst surface.The H2 selectivity achieves nearly 100%at the high temperature stage(550℃to 600℃).关键词
复合金属氧化物/甲烷部分氧化/物种分布/金属离子掺杂/产物选择性Key words
composite metal oxide/partial oxidation of methane/species distribution/metal ion doping/product selectivity分类
化学化工引用本文复制引用
舒东博,陈海洁,王晓斌,闫妍琼,吕岩,王俊文,丁传敏..金属离子掺杂对Ni基复合氧化物结构调控及其催化甲烷部分氧化反应研究[J].低碳化学与化工,2025,50(2):25-30,6.基金项目
山西省自然科学基金(202203021221091). （202203021221091）
