Atomically Dispersed Pd on Nanodiamond/Graphene Hybrid for Selective Hydrogenation of Acetylene

被引：440

作者：

Huang, Fei ^{[1
,2
]}

Deng, Yuchen ^{[3
,4
]}

Chen, Yunlei ^{[5
,6
]}

Cai, Xiangbin ^{[7
]}

Peng, Mi ^{[3
,4
]}

Jia, Zhimin ^{[1
,2
]}

Ren, Pengju ^{[5
,8
]}

Xiao, Dequan ^{[9
]}

Wen, Xiaodong ^{[5
,8
]}

Wang, Ning ^{[7
]}

Liu, Hongyang ^{[1
]}

Ma, Ding ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China

[3] Peking Univ, Beijing Natl Lab Mol Engn, Coll Chem, Beijing 100871, Peoples R China

[4] Peking Univ, Coll Engn, BIC ESAT, Beijing 100871, Peoples R China

[5] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[6] Univ Chinese Acad Sci, 19A Yuanquan Rd, Beijing 100049, Peoples R China

[7] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

[8] Synfuels China Co Ltd, Natl Energy Ctr Coal Clean Fuel, Beijing 101400, Peoples R China

[9] Univ New Haven, Dept Chem & Chem Engn, Ctr Integrat Mat Discovery, 300 Boston Post Rd, West Haven, CT 06516 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 41期

基金：

中国国家自然科学基金;

关键词：

PALLADIUM NANOPARTICLES; ALKYNE HYDROGENATION; CATALYSTS; SEMIHYDROGENATION; CARBON; ENSEMBLES; DIFFUSION; ROLES; SITES; WATER;

D O I：

10.1021/jacs.8b07476

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We reported here a strategy to use a defective nanodiamond-graphene (ND@G) to prepare an atomically dispersed metal catalyst, i.e., in the current case atomically dispersed palladium catalyst which is used for selective hydrogenation of acetylene in the presence of abundant ethylene. The catalyst exhibits remarkable performance for the selective conversion of acetylene to ethylene: high conversion (100%), ethylene selectivity (90%), and good stability. The unique structure of the catalyst (i.e., atomically dispersion of Pd atoms on graphene through Pd-C bond anchoring) blocks the formation of unselective subsurface hydrogen species and ensures the facile desorption of ethylene against the overhydrogenation to undesired ethane, which is the key for the outstanding selectivity of the catalyst.

引用

页码：13142 / 13146

页数：5

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