N-Heterocyclic carbene-stabilized platinum nanoparticles within a porphyrinic nanocage for selective photooxidation  

作　　者：Yi-Shou Wang Hao Li Sha Bai Yao-Yu Wang Ying-Feng Han 

机构地区：[1]Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education,Xi’an Key Laboratory of Functional Supramolecular Structure and Materials,College of Chemistry and Materials Science,Northwest University,Xi’an 710127,China

出　　处：《Science China Chemistry》2023年第3期778-782,共5页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(22025107,21722105);the National Youth Top-Notch Talent Support Program of China,the Natural Science Basic Research Plan in Shaanxi Province(2022JQ-093),the Key Science and Technology Innovation Team of Shaanxi Province(2019TD-007,2019JLZ02);the Xi’an Key Laboratory of Functional Supramolecular Structure and Materials and the FM&EM International Joint Laboratory of Northwest University.

摘　　要：The successful construction of highly stable and active platinum nanoparticles(Pt NPs) within the confined cavity of a threedimensional porphyrinic nanocage is presented in this study. The flexible porphyrinic nanocage containing eight N-heterocyclic carbene(NHC) precursors was prepared using a metal-carbene-templated ring-closing metathesis(RCM) approach as new capping materials for the fabrication/stabilization of Pt NPs. Notably, the NHC-stabilized Pt NPs within the porphyrinic nanocage exhibited high catalytic activity for selective oxidation of 2-chloroethyl ethyl sulfide to nontoxic 2-chloroethyl ethyl sulfoxide with excellent stability and recyclability.

关 键 词：polycarbenes porphyrinic cage nanoparticles PHOTOCATALYSIS 

分 类 号：O641.3[理学—物理化学]