催化作用
双金属片
纳米金刚石
对偶(语法数字)
Atom(片上系统)
选择性
金属
材料科学
化学
纳米技术
吸附
氢
光化学
化学工程
物理化学
有机化学
冶金
艺术
文学类
钻石
计算机科学
嵌入式系统
工程类
作者
Pengcheng Deng,Jianglin Duan,Fenli Liu,Na Yang,Huibin Ge,Jie Gao,Haifeng Qi,Dan Feng,Man Yang,Yong Qin,Yujing Ren
标识
DOI:10.1002/anie.202307853
摘要
Fundamental understanding of the synergistic effect of bimetallic catalysts is of extreme significance in heterogeneous catalysis, but a great challenge lies in the precise construction of uniform dual-metal sites. Here, we develop a novel method for constructing Pt1 -Fe1 /ND dual-single-atom catalyst, by anchoring Pt single atoms on Fe1 -N4 sites decorating a nanodiamond (ND) surface. Using this catalyst, the synergy of nitroarenes selective hydrogenation is revealed. In detail, hydrogen is activated on the Pt1 -Fe1 dual site and the nitro group is strongly adsorbed on the Fe1 site via a vertical configuration for subsequent hydrogenation. Such synergistic effect decreases the activation energy and results in an unprecedented catalytic performance (3.1 s-1 turnover frequency, ca. 100 % selectivity, 24 types of substrates). Our findings advance the applications of dual-single-atom catalysts in selective hydrogenations and open up a new way to explore the nature of synergistic catalysis at the atomic level.
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