文献类型：期刊文献

英文题名：Graphyne-like Porous Carbon-Rich Network Supported Pd Nanoparticles as an Efficient Catalyst for Suzuki-Miyaura Couplings under Aerobic Conditions

作者：Wu, Bin[1,2];Lyu, Pin[2];Wang, Kaixuan[1,2];Qiu, Xiaoyan[2];Zhang, Fang[2];Liu, Taifeng[2];Li, Hexing[1,2];Xiao, Shengxiong[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai, Peoples R China;[2]Shanghai Normal Univ, Int Joint Lab Resource Chem, Educ Minist, Key Lab Resource Chem, Shanghai, Peoples R China

年份：2018

卷号：14

期号：6

起止页码：503

外文期刊名：CURRENT NANOSCIENCE

收录：;EI(收录号：20184406005049);WOS:【SCI-EXPANDED(收录号:WOS:000446852700005)】；

基金：We acknowledge financial support from the National Natural Science Foundation of China (No. 21473113, 21772123 and 51502173), Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. 2013-57), "Shuguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (14SG40), Program of Shanghai Academic/Technology Research Leader (No. 16XD1402700), National Natural Science Foundation of Shanghai (No. 15ZR1431100), Ministry of Education of China (PCSIRT_16R49) and International Joint Laboratory of Resource Chemistry (IJLRC).

语种：英文

外文关键词：Graphyne-like porous carbon-rich network; oxides of graphyne-like carbon materials; electroless deposition; catalyst; Pd nanoparticles; Suzuki-Miyaura coupling

摘要：Background: Suzuki-Miyaura cross-coupling reactions are reliable and powerful methods to minimize their surface energy, especially during the catalytic reaction at high temperature. They could easily lead to deactivation or loss of the catalytic activity. Objective: To solve this problem, adopting new supporting substrate is a possible strategy especially for nanometer-sized catalysts. Methods: Here we focused upon the uses of oxides of a sp(2)-and sp hybridized graphyne-like porous carbon-rich network (GYLPCO) as the supporting materials because they have lower reduction potentials than Pd2+ ions and could enable electroless deposition of Pd in a technically simple way without the use of surfactants or extra reductants or catalysts, while maintaining high activity. Results: We demonstrate that GYLPCO can be used as an excellent substrate for electroless deposition of ultrafine Pd nanoparticles. The as-formed Pd/GYLPCO nanocomposite is found to be an excellent catalyst for highly efficient Suzuki-Miyaura couplings. Conclusion: The unique Pd/GYLPCO exhibits very high catalytic activity for a broad scope of Suzuki-Miyaura reactions in aqueous media under aerobic conditions with short reaction time and good yields. The strong interaction between Pd and GYLPCO carbon-carbon triple bonds prevents the agglomeration or leaching of Pd nanoparticles and enables the Pd/GYLPCO catalyst to remain highly active even after the catalyst is kept in air for a long time.