催化作用
双金属片
X射线光电子能谱
化学
贵金属
氢解
钴
金属
材料科学
铜
产量(工程)
多相催化
无机化学
化学工程
有机化学
冶金
工程类
作者
Qingtu Zhang,Jianliang Zuo,Lu Wang,Feng Peng,Shengzhou Chen,Zili Liu
出处
期刊:ACS omega
[American Chemical Society]
日期:2021-04-16
卷期号:6 (16): 10910-10920
被引量:5
标识
DOI:10.1021/acsomega.1c00676
摘要
The efficient catalysis of the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF) over non noble-metal catalysts has received great attention in recent years. However, the reaction usually requires harsh conditions, such as high reaction temperature and excessively long reaction time, which limits the application of the non noble-metal catalysts. In this work, a bimetallic Cox-Cu@C catalyst was prepared via the pyrolysis of MOFs, and an 85% DMF yield was achieved under a reaction temperature and time of 160 °C and 3 h, respectively. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDX) mapping, and other characterization techniques showed that the synthesis method in this paper realized the in situ loading of cobalt into the copper catalyst. The reaction mechanism studies revealed that the cobalt doping effectively enhanced the hydrogenation activity of the copper-based catalyst on the C–O bond at a low temperature. Moreover, the bimetallic Cox-Cu@C catalyst exhibited superior reusability without any loss in the activity when subjected to five testing rounds.
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