Impact of capping agent removal from Au NPs@MOF core-shell nanoparticle heterogeneous catalysts

被引：30

作者：

Dai, Shan ^{[1
,3
]}

Ngoc, Kieu Phung ^{[1
]}

Grimaud, Laurence ^{[2
]}

Zhang, Sanjun ^{[3
]}

Tissot, Antoine ^{[1
]}

Serre, Christian ^{[1
]}

机构：

[1] PSL Univ, Inst Mat Poreux Paris, Ecole Normale Super, ESPCI Paris,CNRS, F-75005 Paris, France

[2] PSL Univ, Lab Biomol LBM, Dept Chim, Sorbonne Univ,Ecole Normale Super,CNRS, F-75005 Paris, France

[3] East China Normal Univ, State Key Lab Precis Spect, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2022年 / 10卷 / 06期

关键词：

METAL-ORGANIC FRAMEWORKS; POLYVINYLPYRROLIDONE; OXIDATION; PVP;

D O I：

10.1039/d1ta09108e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Metal nanoparticles encased in a MOF shell have shown remarkable properties in catalysis due to potential synergistic effects. However, capping agents, commonly used to prepare these nanoparticles, lower their reactivity once embedded into the MOF. Here we present a new route to prepare polyvinylpyrrolidone (PVP)-capped Au NPs@MOF-808 core-shell composites. Simultaneously, we show for the first time that the capping PVP can be easily removed by chemical treatment while maintaining the integrity of the MOF shell. We finally show how this leads to a significant enhancement of the reactivity of Au NPs@MOF-808 composites for selective oxidation reactions.

引用

页码：3201 / 3205

页数：5

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