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Metal-organic frameworks-derived nitrogen-doped carbon supported nanostructured PtNi catalyst for enhanced hydrosilylation of 1-octene

查看全文 作　　者：Junfeng [1,2]Wen;Yuanjun [2]Chen;Shufang [2]Ji;Jian [2]Zhang;Dingsheng [2]Wang;and Yadong [2]Li 高影响力作者 机构地区：[1]School of chemistry and chemical engineering,Yulin University,Yulin 719000,China;[2]Department of Chemistry,Tsinghua University,Beijing 100084,China高影响力机构 出　　处：《Nano Research》索引2019年第12卷第10期,共5页高影响力期刊 基　　金：This work was supported by the National Postdoctoral Program for Innovative Talents(No.BX20180160);the China Postdoctoral Science Foundation(No.2018M640113);the National Natural Science Foundation of China(No.21890383);the Industrial Science and Technology Tackling Program of Shaanxi Province(No.2016GY-245). 摘　　要：Here,we successfully developed nano structured PtNi particles supported on n itroge rrdoped carbon(NC),which were obtai ned by carbon izati on of metal-organic frameworks under different temperatures,forming the nano-PtNi/NC-600,nano-PtNi/NC-800,nano-PtNi/NC-900 and nano-PtNi/NC-1000 catalysts.For hydrosilylation of 1-octene,we found that the nano-PtNi/NC-1000 catalyst exhibits higher activity for anti-Markovnikov hydrosilylation of 1-octene than those of nano-PtNi/NC-600,nano-PtNi/NC-800,nano-PtNi/NC-900 catalysts.Experiments have verified that benefiting from obvious charge transfer from nano-PtNi particles to NC support carbonized at 1,000℃,the nano-PtNi/NC-1000 catalyst achieved almost complete conversion and produce exclusive adduct for anti-Markovnikov hydrosilylation of 1-octene.Importantly,the nano-PtNi/NC-1000 catalyst exhibited good reusability for the hydrosilylation reaction.This work provides a new path to optimize electronic structure of catalysts by support modification to enhance electron transfer between metal active species and supports for highly catalytic performance. 关 键 词：METAL-ORGANIC frameworks NANOSTRUCTURED PtNi particles HYDROSILYLATION NITROGEN-DOPED carbon
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