文章基本信息

标题：Hydrogenation of m‐chloronitrobenzene over amorphous Ni‐B/CNTs catalysts: Promoting effect of CNTs confinement on the catalytic performance
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作者：Feng Li ; Feng Li ; Jinrong Liang 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2017
卷号：95
期号：10
页码：2012-2017
DOI：10.1002/cjce.22814
语种：English
出版社：Chemical Institute of Canada
摘要：Ni‐B amorphous alloy particles were selectively loaded inside and outside of carbon nanotubes (CNTs) to form a series of Ni‐B/CNTs amorphous alloy catalysts. The confinement effects of the CNTs on the physicochemical properties of Ni‐B/CNTs were investigated. The results show that compared with external loading, the Ni‐B active components after internal loading were subjected to the confinement effect, which better inhibited the growth and aggregation of Ni‐B particles, forming smaller‐size Ni‐B particles, and improved the thermal stability of the Ni‐B amorphous alloy. Moreover, the Ni‐B particles confined in the channels can more efficiently activate hydrogen. During the m‐chloronitrobenzene hydrogenation, the Ni‐B/CNTs with Ni‐B internal loading showed higher catalytic hydrogenation activity than that for Ni‐B external loading. High‐temperature treatment caused a decrease in the catalytic activity, but the internal loading improved the stability of the catalysts. The internal loading method could effectively reduce the loss of the active component, which contributed to improving the stability of the catalyst. Hydrogenation of m‐chloronitrobenzene over amorphous Ni‐B/CNTs catalysts.
关键词：encarbon nanotubesloading methodconfinementamorphous Ni‐Bhydrogenation