In Situ-Generated Co0-Co3O4/N-Doped Carbon Nanotubes Hybrids as Efficient and Chemoselective Catalysts for Hydrogenation of Nitroarenes
In Situ-Generated Co0-Co3O4/N-Doped Carbon Nanotubes Hybrids as Efficient and Chemoselective Catalysts for Hydrogenation of Nitroarenes
复制标题
原位生成的 Co-0-Co3O4/N 掺杂碳纳米管杂化物作为硝基芳烃氢化的高效化学选择性催化剂
DOI：
10.1021/acscatal.5b00737
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发表时间：
2015-08-01
期刊：
影响因子：
12.9
通讯作者：
Wang, Yong
中科院分区：
文献类型：
--
作者：
Wei, Zhongzhe;Wang, Jing;Wang, Yong
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.
