纳米片
催化作用
稳健性(进化)
材料科学
合理设计
金属有机骨架
纳米技术
铜
金属
组合化学
反应性(心理学)
化学
有机化学
吸附
病理
基因
医学
冶金
生物化学
替代医学
作者
Chuanhui Huang,Juncai Dong,Weiming Sun,Zhenjie Xue,Jun Ma,Lirong Zheng,Cong Liu,Xiao Li,Kang Zhou,Xuezhi Qiao,Qian Song,Wende Ma,Lan Zhang,Zhenyu Lin,Tie Wang
标识
DOI:10.1038/s41467-019-10547-9
摘要
Abstract Optimising the supported modes of atom or ion dispersal onto substrates, to synchronously integrate high reactivity and robust stability in catalytic conversion, is an important yet challenging area of research. Here, theoretical calculations first show that three-coordinated copper (Cu) sites have higher activity than four-, two- and one-coordinated sites. A site-selective etching method is then introduced to prepare a stacked-nanosheet metal–organic framework (MOF, CASFZU-1)-based catalyst with precisely controlled coordination number sites on its surface. The turnover frequency value of CASFZU-1 with three-coordinated Cu sites, for cycloaddition reaction of CO 2 with epoxides, greatly exceed those of other catalysts reported to date. Five successive catalytic cycles reveal the superior stability of CASFZU-1 in the stacked-nanosheet structure. This study could form a basis for the rational design and construction of highly efficient and robust catalysts in the field of single-atom or ion catalysis.
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