催化作用
Atom(片上系统)
乙炔
对偶(语法数字)
化学
双重角色
材料科学
组合化学
有机化学
并行计算
计算机科学
文学类
艺术
作者
Yuxue Yue,Bolin Wang,Chunxiao Jin,Kaixin Huang,Qi Zhou,Renqin Chang,Saisai Wang,Zhiyan Pan,Jia Zhao,Xiaonian Li
标识
DOI:10.1021/acscatal.3c05779
摘要
The design of inexpensive, nontoxic, and abundant transition metal catalysts for the selective hydrogenation of alkynes remains a significant challenge faced by both the industrial and academic communities. Here, we report a novel catalyst comprising a well-defined Cu–Zn dual-atom catalyst supported on defective pyrolyzed ZIF-8 material (CuZn/NC2), resulting in enhanced d-electron domination near the Fermi level and reordered d-orbital Splitting manner. This catalyst exhibited outstanding performance in the selective hydrogenation of acetylene to ethylene, demonstrating high conversion rates (97%), remarkable selectivity (97.5%), and excellent stability (over 70 h). The unique structural characteristics of Cu–Zn dual-atom sites, anchored to the carrier through Cu–N3&Zn–N3 configurations, ensured effective acetylene activation and easy desorption of ethylene. These features are pivotal to the catalyst's exceptional activity and selectivity. This work presents a new approach to the design of nonprecious metal catalysts for the selective hydrogenation of acetylene.
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