Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition

doi:10.1016/j.apcatb.2020.119223

	Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition
	Wang, Anqi 1,2,3; Zhang, Le 1,2,3; Rahimi, Mohammad Gh 1,2; Gong, Shuyan 4; Nie, Linfeng 1,2; Han, Ning 1,2,3; Chen, Yunfa 1,2,3
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2020-11-15
卷号	277 页码:8
关键词	Ozone catalyst ZnO Crystal defects Electron transfer
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2020.119223
英文摘要	Nowadays, it is necessary to discover the interactions of O-3 with metal oxides in order to synthesize active O-3 degradation catalysts. Herein, ZnO is adopted as a model and the crystal defects are tuned by annealing in H-2 and O-2, and by doping with Ga and Li. The H-2 annealed ZnO behaves far higher activity towards 20 ppm O-3 than those as-obtained and O-2 annealed ones, and the activity can be further improved by doping with Ga donors and Li acceptors. The mechanism investigation shows that the oxygen vacancy induced by H-2 annealing favors the activity while the oxygen interstitials depress it, implying that there existed electron transfer between crystal defects, O-3 and the intermediate species. Furthermore, the deactivation of catalyst is attributed to the filling out of the oxygen vacancy. All these results provide fundamental understanding for further improvement of O-3 degradation catalysts.
资助项目	National Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400]
WOS关键词	MANGANESE OXIDE CATALYST ; LI-DOPED ZNO ; OZONE DECOMPOSITION ; CODOPING METHOD ; OXIDATION ; OXYGEN ; TEMPERATURE ; MECHANISM ; NANOPARTICLES ; LUMINESCENCE
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000552015900049
资助机构	National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41449]
专题	中国科学院过程工程研究所
通讯作者	Han, Ning; Chen, Yunfa
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 4.Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Wang, Anqi,Zhang, Le,Rahimi, Mohammad Gh,et al. Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,277:8.
APA	Wang, Anqi.,Zhang, Le.,Rahimi, Mohammad Gh.,Gong, Shuyan.,Nie, Linfeng.,...&Chen, Yunfa.(2020).Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition.APPLIED CATALYSIS B-ENVIRONMENTAL,277,8.
MLA	Wang, Anqi,et al."Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition".APPLIED CATALYSIS B-ENVIRONMENTAL 277(2020):8.