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

doi:10.1016/j.apcatb.2020.119223

CAS OpenIR

	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
	2020-11-15
Source Publication	APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN	0926-3373
Volume	277 Pages:8
Abstract	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.
Keyword	Ozone catalyst ZnO Crystal defects Electron transfer
DOI	10.1016/j.apcatb.2020.119223
Language	英语
WOS Keyword	MANGANESE OXIDE CATALYST ; LI-DOPED ZNO ; OZONE DECOMPOSITION ; CODOPING METHOD ; OXIDATION ; OXYGEN ; TEMPERATURE ; MECHANISM ; NANOPARTICLES ; LUMINESCENCE
Funding Project	National Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400]
WOS Research Area	Chemistry ; Engineering
WOS Subject	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
Funding Organization	National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS ID	WOS:000552015900049
Publisher	ELSEVIER
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/41450
Collection	中国科学院过程工程研究所
Corresponding Author	Han, Ning; Chen, Yunfa
Affiliation	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
Recommended Citation 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.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院过程工程研究所机构知识库