文献类型：期刊文献

英文题名：Magnetic NiO nanoparticles confined within open ends MWCNTs: a novel and highly active catalyst for hydrogenation and synthesis of imines

作者：Chen, Gangquan[1];Gao, Wenbin[2];Wang, Xuejun[3];Huo, Hongfei[2];Li, Wenzhu[2];Zhang, Le[2];Li, Rong[2];Li, Zuixiong[1]

第一作者：Chen, Gangquan

通信作者：Li, ZX[1]

机构：[1]Lanzhou Univ, Key Lab Mech Western Disaster & Environm, Minist Educ, Lanzhou 730000, Peoples R China;[2]Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China;[3]Gansu Univ Tradit Chinese Med, Tradit Chinese Med Undergrad, Lanzhou, Peoples R China

第一机构：Lanzhou Univ, Key Lab Mech Western Disaster & Environm, Minist Educ, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, Key Lab Mech Western Disaster & Environm, Minist Educ, Lanzhou 730000, Peoples R China.

年份：2016

卷号：6

期号：63

起止页码：58805

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20162702554920);Scopus(收录号：2-s2.0-84976421918);WOS:【SCI-EXPANDED(收录号:WOS:000378725800120)】；

基金：This work was supported by the Key projects in the National Science and Technology Pillar Program of China (2014 4BAK16B01).

语种：英文

外文关键词：Aromatic compounds - Multiwalled carbon nanotubes (MWCN) - Nanomagnetics - Nanoparticles - Yarn - Amines - Nickel oxide - Catalyst selectivity - Synthesis (chemical)

摘要：A new nanocatalyst has been synthesized by confining magnetic nickel nanoparticles within carbon nanotubes (CNTs) and characterized by XRD, TEM, Raman and VSM. The character of the nanocatalyst passivated with a gas mixture was that it can be stored safely in air below 150 degrees C and needs no activation prior to use. In the catalytic test, a nickel oxide nanocatalyst confined inside the Multi-walled carbon nanotubes nanochannels (NiO/MWCNTs-in) was found to be a highly efficient and reusable catalyst for the reduction of various aromatic nitro compounds to various aromatic amines, the conversion and selectivity of which were almost up to 100% and exceed 80%. The prominent merit of the catalyst is that the overall formation rate of product inside the nanotubes exceeds that outside. Moreover, it is inexpensive, and could be prepared and scaled up easily. Besides, it can be simply separated from the reaction mixtures by an external magnetic field As a result of the possible confinement effect of CNTs, the employment of the CNTs channels as nanoreactors for catalysis may provide opportunities for the development of new heterogeneous catalysts.