文献类型：期刊文献

英文题名：Gold catalysts containing interstitial carbon atoms boost hydrogenation activity

作者：Sun, Yafei[1,2];Cao, Yueqiang[3];Wang, Lili[1,2];Mu, Xiaotong[1,2];Zhao, Qingfei[1,2];Si, Rui[4];Zhu, Xiaojuan[1,2];Chen, Shangjun[1,2];Zhang, Bingsen[5];Chen, De[6];Wan, Ying[1,2]

机构：[1]Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Minist Educ, Key Lab Resource Chem, Shanghai 200234, Peoples R China;[2]Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China;[5]Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China;[6]Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway

年份：2020

卷号：11

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000607151800001)】；

基金：This work was supported by the National Natural Science Foundation of China (21773156, 21503136), the Ministry of Education of China (PCSIRT_IRT_16R49), the International Joint Laboratory on Resource Chemistry of China (IJLRC), the Shanghai Sci. & Tech. and Edu. Committee (17JC1404200) and the Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development.

语种：英文

摘要：Supported gold nanoparticles are emerging catalysts for heterogeneous catalytic reactions, including selective hydrogenation. The traditionally used supports such as silica do not favor the heterolytic dissociation of hydrogen on the surface of gold, thus limiting its hydrogenation activity. Here we use gold catalyst particles partially embedded in the pore walls of mesoporous carbon with carbon atoms occupying interstitial sites in the gold lattice. This catalyst allows improved electron transfer from carbon to gold and, when used for the chemoselective hydrogenation of 3-nitrostyrene, gives a three times higher turn-over frequency (TOF) than that for the well-established Au/TiO2 system. The d electron gain of Au is linearly related to the activation entropy and TOF. The catalyst is stable, and can be recycled ten times with negligible loss of both reaction rate and overall conversion. This strategy paves the way for optimizing noble metal catalysts to give an enhanced hydrogenation catalytic performance.