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Rare earth oxides and their supported noble metals in application of environmental catalysis
Journal of Rare Earths ( IF 5.2 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jre.2020.01.011
Zhiquan Hou , Wenbo Pei , Xing Zhang , Kunfeng Zhang , Yuxi Liu , Jiguang Deng , Lin Jing , Hongxing Dai

Abstract Volatile organic compounds (VOCs), methane, carbon monoxide, soot, automotive exhaust, and nitrogen oxides are harmful to the atmosphere and human health. It is urgent to strictly control their emissions. Heterogeneous catalysis is an effective pathway for the removal of these pollutants, and the critical issue is the development of novel and high-performance catalysts. In this review, we briefly summarize the preparation methods, physicochemical properties, catalytic activities, and related reaction mechanisms for the above pollutants removal of the rare earth oxides, mixed rare earth oxide, rare earth oxide-supported noble metal, and mixed rare earth oxide-supported noble metal catalysts that have been investigated by our group and other researchers. It was found that catalytic performance was associated with the factors, such as specific surface area, pore structure, particle size and dispersion, adsorbed oxygen species concentration, reducibility, reactant activation ability or interaction between metal nanoparticles and support. Furthermore, we also envision the development trend of such a topic in future work.

中文翻译:

稀土氧化物及其负载贵金属在环境催化中的应用

摘要 挥发性有机化合物 (VOC)、甲烷、一氧化碳、烟尘、汽车尾气和氮氧化物对大气和人类健康有害。迫切需要严格控制它们的排放。多相催化是去除这些污染物的有效途径,关键问题是开发新型高性能催化剂。在这篇综述中,我们简要总结了上述污染物去除稀土氧化物、混合稀土氧化物、稀土氧化物负载贵金属和混合稀土氧化物的制备方法、理化性质、催化活性和相关反应机理。 -我们小组和其他研究人员研究过的负载型贵金属催化剂。发现催化性能与以下因素有关,例如比表面积、孔结构、粒径和分散度、吸附氧浓度、还原性、反应物活化能力或金属纳米颗粒与载体之间的相互作用。此外,我们还展望了未来工作中此类主题的发展趋势。
更新日期:2020-08-01
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