In Situ-Generated Co0-Co3O4/N-Doped Carbon Nanotubes Hybrids as Efficient and Chemoselective Catalysts for Hydrogenation of Nitroarenes

被引：389

作者：

Wei, Zhongzhe ^{[1
]}

Wang, Jing ^{[1
]}

Mao, Shanjun ^{[1
]}

Su, Diefeng ^{[1
]}

Jin, Haiyan ^{[1
]}

Wang, Yihe ^{[1
]}

Xu, Fan ^{[1
]}

Li, Haoran ^{[1
]}

Wang, Yong ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Adv Mat & Catalysis Grp, ZJU NHU United R&D Ctr, Hangzhou 310028, Zhejiang, Peoples R China

来源：

ACS CATALYSIS | 2015年 / 5卷 / 08期

基金：

中国国家自然科学基金;

关键词：

chemoselective hydrogenation; heterogeneous catalyst; metallic cobalt; nitroarenes; nitrogen; AROMATIC NITRO-COMPOUNDS; N-DOPED CARBON; FUNCTIONALIZED NITROARENES; SELECTIVE HYDROGENATION; REDUCTION; GOLD; NANOPARTICLES; COBALT; METAL; GRAPHENE;

D O I：

10.1021/acscatal.5b00737

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The earth-abundant nanohybrids Co-0/Co3O4@N-doped carbon nanotubes were fabricated via an efficient thermal condensation of D-glucosamine hydrochloride, melamine, and Co-(NO3)(2)center dot 6H(2)O. The hybrids furnish excellent catalytic activity and perfect chemoselectivity (>99%) for a wide range of substituted nitroarenes (21 examples) under relatively mild conditions. The high catalytic performance and durability is attributed to the synergistic effects between each component, the unique structure of graphene layers-coated Co-0, and the electronic activation of doped nitrogen. Density functional calculations indicate that the inner Co-0 core and N species on the carbon shell can significantly decrease the dissociation energies of H-2, giving evidence of the ability of carbon shell in the hybrids to enable H-2 activation. These results open up an avenue to design more powerful low-cost catalysts for industrial applications.

引用

页码：4783 / 4789

页数：7

共 54 条

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