Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure

doi:10.1002/cctc.202000699

IMR OpenIR

	Assessing the Effect of the Electron-Beam Irradiation on Pd/Ga(2)O(3)Catalyst under Ambient Pressure
	Wang, Yongzhao 1,2; Niu, Yiming 1,2; Gao, Tongtong 1; Liu, Siyang 1; Zhang, Bingsen 1,2
通讯作者	Zhang, Bingsen(bszhang@imr.ac.cn)
	2020-09-02
发表期刊	CHEMCATCHEM
ISSN	1867-3880
页码	6
摘要	Introducing 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.
关键词	in-situ transmission electron microscopy Pd Ga2O3 electron-beam irradiation damage ambient pressure metal-support interaction
资助者	National Natural Science Foundation of China ; LiaoNing Revitalization Talents Program ; Joint Research Fund Liaoning Shenyang National Laboratory for Materials Science (SYNL) ; Research Fund of SYNL
DOI	10.1002/cctc.202000699
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000564848000001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/140401
专题	中国科学院金属研究所
通讯作者	Zhang, Bingsen
作者单位	1.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
推荐引用方式 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.