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Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure
Wang, Yongzhao1,2; Niu, Yiming1,2; Gao, Tongtong1; Liu, Siyang1; Zhang, Bingsen1,2
Corresponding AuthorZhang, Bingsen(bszhang@imr.ac.cn)
2020-09-02
Source PublicationCHEMCATCHEM
ISSN1867-3880
Pages6
AbstractIntroducing atmosphere in transmission electron microscope enables to directly observe the structural features of catalyst under working conditions. It offers the possibility to study the microstructural evolution and correlate real structures with catalytic properties at nano- or atomic-scale during catalysis. However, the damages to catalyst derived from the high energy electron-beam irradiation cannot be ignored and may lead to ambiguous conclusions, as the interaction between reactive gas molecules and active structures is only desired. Herein, the alpha-Ga(2)O(3)supported Pd catalyst was selected as a model to evaluate the potential effect of electron-beam on the surface and interface structures, which directly affect the catalytic performance, at varied atmospheres, elevated temperatures and increased electron dose rate in ambient pressure. The results indicate that the supported Pd nanoparticles could be encapsulated by GaO(x)layer when the imaging electron dose rate is higher than 100 e/angstrom(2)s under reduction and oxidizing atmosphere. Either increasing the electron dose rate or elevating the temperature exacerbates the irradiation damage to alpha-Ga(2)O(3)support. This work was expected to evaluate the effect of electron dose rate to supported catalysts under chemical environments, and provide guidance for the investigation of in-situ transmission electron microscopy under ambient pressure.
Keywordin-situ transmission electron microscopy Pd Ga2O3 electron-beam irradiation damage ambient pressure metal-support interaction
Funding OrganizationNational Natural Science Foundation of China ; LiaoNing Revitalization Talents Program ; Joint Research Fund Liaoning Shenyang National Laboratory for Materials Science (SYNL) ; Research Fund of SYNL
DOI10.1002/cctc.202000699
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21761132025] ; National Natural Science Foundation of China[21773269] ; National Natural Science Foundation of China[51932005] ; National Natural Science Foundation of China[91545119] ; LiaoNing Revitalization Talents Program[XLYC1807175] ; Joint Research Fund Liaoning Shenyang National Laboratory for Materials Science (SYNL)[20180510047] ; Research Fund of SYNL[L2019F38]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000564848000001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140401
Collection中国科学院金属研究所
Corresponding AuthorZhang, Bingsen
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yongzhao,Niu, Yiming,Gao, Tongtong,et al. Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure[J]. CHEMCATCHEM,2020:6.
APA Wang, Yongzhao,Niu, Yiming,Gao, Tongtong,Liu, Siyang,&Zhang, Bingsen.(2020).Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure.CHEMCATCHEM,6.
MLA Wang, Yongzhao,et al."Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure".CHEMCATCHEM (2020):6.
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