CAS OpenIR
Defect engineering of ZnO for electron transfer in O-3 catalytic decomposition
Wang, Anqi1,2,3; Zhang, Le1,2,3; Rahimi, Mohammad Gh1,2; Gong, Shuyan4; Nie, Linfeng1,2; Han, Ning1,2,3; Chen, Yunfa1,2,3
2020-11-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume277Pages:8
AbstractNowadays, 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.
KeywordOzone catalyst ZnO Crystal defects Electron transfer
DOI10.1016/j.apcatb.2020.119223
Language英语
WOS KeywordMANGANESE OXIDE CATALYST ; LI-DOPED ZNO ; OZONE DECOMPOSITION ; CODOPING METHOD ; OXIDATION ; OXYGEN ; TEMPERATURE ; MECHANISM ; NANOPARTICLES ; LUMINESCENCE
Funding ProjectNational Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS IDWOS:000552015900049
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41450
Collection中国科学院过程工程研究所
Corresponding AuthorHan, Ning; Chen, Yunfa
Affiliation1.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.
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