Nanoreactors derived from silica-protection-assisted metal-organic framework  

作　　者：Ling Jin Xiaxia Li Chunsen Liu Huan Pang 

机构地区：[1]School of Chemistry and Chemical Engineering,Guangling College,Yangzhou University,Yangzhou 225009,China [2]Henan Provincial Key Laboratory of Surface&Interface Science,Zhengzhou University of Light Industry,Zhengzhou 450002,China

出　　处：《Chinese Chemical Letters》2020年第9期2207-2210,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC,Nos.21671170,21673203);the Topnotch Academic Programs Project of Jiangsu Higher Education Institutions(TAPP);Program for New Century Excellent Talents of the University in China(NCET,No.13-0645);the Six Talent Plan(No.2015-XCL-030);Qinglan Project。

摘　　要：The construction of highly stable and regular nanoreactors is a major challenge.In this work,we use a facile template protection method to obtain ZIF-67@SiO2(JS) and to encapsulate metal oxide nanoparticles(Co3O4) into nanoreactors(SiO2).ZIF-67 crystals provide a cobalt species;SiO2 was first used as a protective layer of ZIF-67 and then as a nanoreactor for metastable metal oxide nanoparticles.On this basis,Co3O4@SiO2 with dodecahedron morphology were synthesized by calcining JS at different tempe ratures,followed by a hydrothermal reaction to obtain Co3(OH)4Si2O5.Subsequently,CoSx and CoP-SiO2 were fabricated through sulfuration and phosphorization.The results in this work show that nanoreactors derived from metal-organic frameworks(MOFs) with a rational structure have broad development prospects.

关 键 词：Core-shell structure Metal oxide nanoparticles Co3(OH)4Si2O5 NANOREACTORS Silicon shell 

分 类 号：O641.4[理学—物理化学] TB383.1[理学—化学]