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Isolation of Pd atoms by Cu for semi-hydrogenation of acetylene: Effects of Cu loading
Pei, Guangxian1,2; Liu, Xiaoyan1; Chai, Mengqian1,2; Wang, Aiqin1; Zhang, Tao1
KeywordCopper Palladium Single-atom Catalyst X-ray Absorption Spectroscopy Acetylene Hydrogenation Excess Ethylene
Source PublicationCHINESE JOURNAL OF CATALYSIS
2017-09-01
DOI10.1016/S1872-2067(17)62847-X
Volume38Issue:9Pages:1540-1548
Indexed BySCI ; ISTP
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordSINGLE-ATOM ; SELECTIVE HYDROGENATION ; EXCESS ETHYLENE ; CO OXIDATION ; CATALYSTS ; PERFORMANCE ; AG ; NITROARENES ; EFFICIENT ; REACTOR
AbstractCu-alloyed Pd single-atom catalysts exhibit excellent catalytic performance for the semi-hydrogenation of acetylene; however, the limit of the Cu/Pd atomic ratio for forming the alloyed Pd single-atom catalyst is ambiguous. Herein, silica-supported Cu-Pd bimetallic catalysts with fixed Pd content and varied Cu loadings were synthesized using an incipient wetness co-impregnation method. The X-ray absorption spectroscopy results indicated that Pd formed an alloy with Cu after reduction at 250 degrees C and that the Pd atoms were completely isolated by Cu for Cu/Pd atomic ratios 40/1. Notably, increasing the reduction temperature from 250 to 400 degrees C hardly affected the catalytic performances of the Cu-Pd/SiO2 catalysts. This finding can be attributed to the similar chemical environments of Pd demonstrated by the X-ray absorption spectroscopy results. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences.
Language英语
WOS IDWOS:000411423600013
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/150065
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, State Key Lab Catalysis, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Pei, Guangxian,Liu, Xiaoyan,Chai, Mengqian,et al. Isolation of Pd atoms by Cu for semi-hydrogenation of acetylene: Effects of Cu loading[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(9):1540-1548.
APA Pei, Guangxian,Liu, Xiaoyan,Chai, Mengqian,Wang, Aiqin,&Zhang, Tao.(2017).Isolation of Pd atoms by Cu for semi-hydrogenation of acetylene: Effects of Cu loading.CHINESE JOURNAL OF CATALYSIS,38(9),1540-1548.
MLA Pei, Guangxian,et al."Isolation of Pd atoms by Cu for semi-hydrogenation of acetylene: Effects of Cu loading".CHINESE JOURNAL OF CATALYSIS 38.9(2017):1540-1548.
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