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Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdHx
Niu, Yiming; Liu, Xi; Wang, Yongzhao; Zhou, Song; Lv, Zhengang; Zhang, Liyun; Shi, Wen; Li, Yongwang; Zhang, Wei; Su, Dang Sheng; Zhang, Bingsen
2019-03-22
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
Volume58Issue:13Pages:4232-4237
AbstractControllable synthesis of well-defined supported intermetallic catalysts is desirable because of their unique properties in physical chemistry. To accurately pinpoint the evolution of such materials at an atomic-scale, especially clarification of the initial state under a particular chemical environment, will facilitate rational design and optimal synthesis of such catalysts. The dynamic formation of a ZnO-supported PdZn catalyst is presented, whereby detailed analyses of insitu transmission electron microscopy, electron energy-loss spectroscopy, and insitu X-ray diffraction are combined to form a nanoscale understanding of PdZn phase transitions under realistic catalytic conditions. Remarkably, introduction of atoms (H and Zn in sequence) into the Pd matrix was initially observed. The resultant PdHx is an intermediate phase in the intermetallic formation process. The evolution of PdHx in the PdZn catalyst initializes at the PdHx/ZnO interfaces, and proceeds along the PdHx 111 direction.
KeywordEELS heterogeneous catalysis in situ TEM PdHx PdZn intermetallics
Indexed BySCI
Language英语
WOS IDWOS:000462655400021
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81272
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Niu, Yiming,Liu, Xi,Wang, Yongzhao,et al. Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdHx[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2019,58(13):4232-4237.
APA Niu, Yiming.,Liu, Xi.,Wang, Yongzhao.,Zhou, Song.,Lv, Zhengang.,...&Zhang, Bingsen.(2019).Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdHx.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,58(13),4232-4237.
MLA Niu, Yiming,et al."Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdHx".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 58.13(2019):4232-4237.
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