摘要
铈基催化剂是重要的汽车尾气三元转化(TWCs)及挥发性有机废气(VOCs)氧化催化剂,从理论上系统研究载体、活性组分的性质及其相互作用,反应物在铈基催化剂上吸附与反应行为,可认识催化现象的电子本质,加深反应机制的理解,为催化剂的设计提供理论参考与依据。本文通过CeO2体相、表面、氧空位、团簇性质,探针分子在CeO2表面吸附反应行为,金属铈基催化剂性质及探针分子在其表面吸附与反应等4个方面对近年来的研究工作进行了综述,指出了铈基催化剂研究的方向与前景。
Ceria-based catalyst is one of the most important catalysts for the automotive three-way conversion and the elimination of volatile organic compounds（VOCs）.A systematic investigation of the properties of ceria,active component and their interactions is very important to improve the understanding of the adsorption and reaction behaviors of reactants on ceria-based catalysts.It can also provide valuable information for catalyst design and development.In this paper,we did a systematic literature review on the properties of ceria bulk,surface,oxygen vacancy and cluster;reactant adsorption and reaction on ceria surface;and the adsorption and reaction of typical reactants on M/CeO2 catalysts.Finally,we pointed out the prospect of ceria-base catalyst.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2010年第2期129-140,共12页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金(20903081)
浙江省自然科学基金(Y407163)资助
关键词
铈基催化剂
氧空位
探针分子
密度泛函理论
反应机制
稀土
ceria-based catalyst
oxygen vacancy
probe molecule
density functional theory
reaction mechanism
rare earths
