MnFeO x@TiO2Nanocages for Selective Catalytic Reduction of NO with NH3at Low Temperature

doi:10.1021/acsanm.1c00979

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	MnFeO x@TiO2Nanocages for Selective Catalytic Reduction of NO with NH3at Low Temperature
	Cai, Ziguo 1,2; Zhang, Guodong 1; Tang, Zhicheng 1,3; Zhang, Jiyi 2
刊名	ACS Applied Nano Materials
	2021-06-25
卷号	4 期号:6 页码:6201-6211
关键词	Ammonia Catalyst activity Iron compounds Manganese compounds Oxide minerals Reduction Shells (structures) Temperature Titanium dioxide Catalytic performance Core shell structure Large specific surface areas Porous structures Prussian blue analogues Selective catalytic reduction of NO Self-assembly method Strong interaction
DOI	10.1021/acsanm.1c00979
英文摘要	Based on Prussian blue analogues (PBAs), using the in situ self-assembly method, MnFeOx@TiO2 double-walled nanocages with a hollow and porous structure were constructed by annealing the core-shell structure of Mn3[Fe(CN)6]2·nH2O@Ti(OH)4. Compared with the MnFeOx single-walled nanocages without the TiO2 shell, the MnFeOx@TiO2 double-walled nanocages exhibited a better catalytic performance in selective catalytic reduction (SCR) with NH3 at low temperatures, and the NO removal efficiency could reach 80% at 145-260 °C. Establishing the TiO2 shell layer could effectively improve the adsorption and activation performance of the reactants. Through a series of characterizations, it was confirmed that the MnFeOx@TiO2 double-walled nanocages possessed a large specific surface area, abundant structural defects, and oxygen vacancies. Besides, the MnFeOx@TiO2 catalyst had more Mn4+ species, higher Fe3+ species, more surface-adsorbed oxygen (Oads) species, and a strong interaction between MnOx, FeOx, and the TiO2 shell, which led to better catalytic activity. At the same time, the MnFeOx@TiO2 double-walled nanocages exhibited satisfactory thermal stability and better H2O resistance. ©
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000668366800062
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150971]
专题	石油化工学院
作者单位	1.State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 2.School of Petroleum and Chemical, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian; 116023, China
推荐引用方式 GB/T 7714	Cai, Ziguo,Zhang, Guodong,Tang, Zhicheng,et al. MnFeO x@TiO2Nanocages for Selective Catalytic Reduction of NO with NH3at Low Temperature[J]. ACS Applied Nano Materials,2021,4(6):6201-6211.
APA	Cai, Ziguo,Zhang, Guodong,Tang, Zhicheng,&Zhang, Jiyi.(2021).MnFeO x@TiO2Nanocages for Selective Catalytic Reduction of NO with NH3at Low Temperature.ACS Applied Nano Materials,4(6),6201-6211.
MLA	Cai, Ziguo,et al."MnFeO x@TiO2Nanocages for Selective Catalytic Reduction of NO with NH3at Low Temperature".ACS Applied Nano Materials 4.6(2021):6201-6211.