材料科学
催化作用
苯乙炔
镍
贵金属
选择性
炔烃
共价有机骨架
傅里叶变换红外光谱
X射线光电子能谱
共价键
化学工程
无机化学
有机化学
化学
冶金
工程类
作者
Nan Wang,Jianguo Liu,Mingyue Zhang,Chenguang Wang,Xinjun Li,Longlong Ma
标识
DOI:10.1021/acsami.1c22069
摘要
Developing non-noble metal-based catalysts with excellent performance for selective hydrogenation of alkynes under mild reaction conditions is highly desirable but still faces challenges. Herein, a non-noble nickel-modified covalent organic framework (Ni/COF) had been synthesized through a facile post-modified method and followed by reduction at a different temperature under a H2/Ar atmosphere. The as-prepared catalysts were characterized by X-ray diffraction, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller, and Fourier transforms infrared, and the optimal H350-Ni/COF presents excellent catalytic performance in the semihydrogenation of a series of aromatic terminal alkyne substrates, particularly in the partial hydrogenation of phenylacetylene with nearly full conversion and 85% selectivity toward styrene under mild reaction conditions (10 bar of H2, 100 °C, and 1 h). Moreover, such a catalyst also exhibited satisfying stability after three consecutive cycles.
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