期刊
CATALYSTS
卷 11, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/catal11050543
关键词
Pd nanoparticles; hydrogenation; halonitrobenzenes; haloanilines
资金
- National Natural Science Foundation of China [21872109, 22002115]
- China Association of Science and Technology
- Natural Science Basic Research Plan in Shaanxi Province of China [2019JQ-039]
Modulation of the electronic structure of supported Pd nanoparticles on Lewis-basic layered double hydroxides has been demonstrated to promote catalytic activity and selectivity for hydrogenation of halonitrobenzenes into haloanilines, by improving hydrogen activation capability and generating partially negative-charged hydrogen species to suppress dehalogenation.
Selective hydrogenation of halonitrobenzenes into haloanilines represents a green process to replace the environmentally unfriendly non-catalytic chemical reduction process in industry. However, this transformation often suffers from serious dehalogenation due to the easy break of carbon-halogen bonds on metal surfaces. Modulations of the electronic structure of the supported Pd nanoparticles on Lewis-basic layered double hydroxides have been demonstrated to promote catalytic activity and selectivity for hydrogenation of halonitrobenzenes into haloanilines. Mechanism studies suggest that Pd with the enhanced electron density not only improves the capability for hydrogen activation, but also generates the partially negative-charged hydrogen species to suppress the electrophilic attack on the carbon-halogen bond and avoid the dehalogenation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据