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Title: A general approach towards multi-faceted hollow oxide composites using zeolitic imidazolate frameworks
Authors: Wu, Renbing
Wang, Dan Ping
Han, Jianyu
Liu, Hai
Zhou, Kun
Huang, Yizhong
Xu, Rong
Wei, Jun
Chen, Xiaodong
Chen, Zhong
Keywords: Sol-gel process
Cobalt compounds
Issue Date: 2015
Source: Wu, R., Wang, D. P., Han, J., Liu, H., Zhou, K., Huang, Y., et al. (2015). A general approach towards multi-faceted hollow oxide composites using zeolitic imidazolate frameworks. Nanoscale, 7(3), 965-974.
Series/Report no.: Nanoscale
Abstract: To realize the various functionalities and maximize the structural advantages, hollow particles with multiple compositions and complex structures are highly desirable. However, the development of a convenient and scalable method for the synthesis of such multi-compositionally complex hollow structures remains a big challenge. Herein, we report an efficient and universal strategy to fabricate a variety of porous hollow oxide nanocomposites (Co3O4/SiO2, Co3O4/TiO2, ZnO/SiO2, and ZnO/TiO2) composed of nanosized subunits, which involves a sol–gel process to form a shell onto the dodecahedral zeolitic imidazolate framework (ZIF) template and a subsequent thermolysis-induced transformation of the template at appropriate temperatures. Such a multi-compositional hollow structure with a large surface area endows the materials with exceptional properties and performances. As an example, we demonstrated that these complex hollow oxide composites, especially the Co3O4/SiO2 hollow dodecahedra, exhibit a significantly enhanced photocatalytic performance as oxygen evolution photocatalysts.
DOI: 10.1039/C4NR05135A
Schools: School of Chemical and Biomedical Engineering 
School of Materials Science & Engineering 
School of Mechanical and Aerospace Engineering 
Organisations: A*STAR SIMTech
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2015 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:ERI@N Journal Articles
MAE Journal Articles
MSE Journal Articles
SCBE Journal Articles
SIMTech Journal Articles

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