文献类型：期刊文献

中文题名：Pd单原子整体催化剂: 功能化的三维结构和优异的化学加氢选择性

英文题名：Pd single-atom monolithic catalyst: Functional 3D structure and unique chemical selectivity in hydrogenation reaction

作者：Zhang, Zedong[1];Zhou, Min[2,3];Chen, Yuanjun[1];Liu, Shoujie[4];Wang, Haifeng[2,3];Zhang, Jian[1];Ji, Shufang[1];Wang, Dingsheng[1];Li, Yadong[1]

机构：[1]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;[2]East China Univ Sci & Technol, Ctr Computat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[4]Chem & Chem Engn Guangdong Lab, Shantou 515063, Peoples R China

年份：2021

卷号：64

期号：8

起止页码：1919

外文期刊名：SCIENCE CHINA-MATERIALS

收录：;EI(收录号：20210709925346);WOS:【SCI-EXPANDED(收录号:WOS:000617109700001)】；

基金：This work was supported by the National Key R&D Program of China (2018YFA0702003), the National Natural Science Foundation of China (21890383, 21671117, 21871159 and 21901135), the National Postdoctoral Program for Innovative Talents (BX20180160), and the China Postdoctoral Science Foundation (2018M640113). We thank the BL14W1 station in Shanghai Synchrotron Radiation Facility (SSRF) and 1W1B station for XAFS measurement in Beijing Synchrotron Radiation Facility (BSRF).

语种：中文

外文关键词：single-atom; monolithic catalyst; isolated site; hydrogenation reaction

摘要：Regulating the selectivity of catalysts in selective hydrogenation reactions at the atomic level is highly desirable but remains a grand challenge. Here we report a simple and practical strategy to synthesize a monolithic single-atom catalyst (SAC) with isolated Pd atoms supported on bulk nitrogen-doped carbon foams (Pd-SAs/CNF). Moreover, we demonstrate that the single-atom Pd sites with unique electronic structure endow Pd-SAs/CNF with an isolated site effect, leading to excellent activity and selectivity in 4-nitrophenylacetylene semi-hydrogenation reaction. In addition, benefiting from the great integrity and excellent mechanical strength, monolithic Pd-SAs/CNF catalyst is easy to separate from the reaction system for conducting the subsequent recycling. The cyclic test demonstrates the excellent reusability and stability of monolithic Pd-SAs/CNF catalyst. The discovery of isolated site effect provides a new approach to design highly selective catalysts. And the development of monolithic SACs provides new opportunities to advance the practical applications of single-atom catalysts.