文献类型：期刊文献

英文题名：Dealuminated Beta zeolite reverses Ostwald ripening for durable copper nanoparticle catalysts

作者：Liu, Lujie[1];Lu, Jiaye[2];Yang, Yahui[3];Ruettinger, Wolfgang[3];Gao, Xinhua[4];Wang, Ming[5];Lou, Hao[6];Wang, Zhandong[6];Liu, Yifeng[7];Tao, Xin[8];Li, Lina[8];Wang, Yong[9,10];Li, Hangjie[1];Zhou, Hang[1];Wang, Chengtao[1];Luo, Qingsong[1];Wu, Huixin[1];Zhang, Kaidi[1];Ma, Jiabi[5];Cao, Xiaoming[2,11];Wang, Liang[1];Xiao, Feng-Shou[1,12]

机构：[1]Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Joint Int Res Lab Precis Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]BASF Adv Chem Co Ltd, Shanghai 200137, Peoples R China;[4]Ningxia Univ, Sch Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gree, Yinchuan 750021, Peoples R China;[5]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Cluster Sci, Minist Educ, Beijing 102488, Peoples R China;[6]Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China;[7]Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China;[8]Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China;[9]Zhejiang Univ, Ctr Electron Microscopy, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China;[10]Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China;[11]Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China;[12]Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

年份：2024

卷号：383

期号：6678

起止页码：94

外文期刊名：SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001138156400002)】；

基金：This work was supported by the National Key Research and Development Program of China (2022YFA1503502 and 2019YFA0405602); the National Natural Science Foundation of China (22288101, 22241801, 22202176, 22022302, and 92045303); the China Postdoctoral Science Foundation (2021M702802); the Shanghai Municipal Science and Technology Major Project (2018SHZDZX03); Group Research Asia of BASF Advanced Chemicals Co., Ltd.; and the Qizhen Project of Zhejiang University.

语种：英文

摘要：Copper nanoparticle-based catalysts have been extensively applied in industry, but the nanoparticles tend to sinter into larger ones in the chemical atmospheres, which is detrimental to catalyst performance. In this work, we used dealuminated Beta zeolite to support copper nanoparticles (Cu/Beta-deAl) and showed that these particles become smaller in methanol vapor at 200 degrees C, decreasing from similar to 5.6 to similar to 2.4 nanometers in diameter, which is opposite to the general sintering phenomenon. A reverse ripening process was discovered, whereby migratable copper sites activated by methanol were trapped by silanol nests and the copper species in the nests acted as new nucleation sites for the formation of small nanoparticles. This feature reversed the general sintering channel, resulting in robust catalysts for dimethyl oxalate hydrogenation performed with supported copper nanoparticles for use in industry.