Complex Cobalt Sulfide Nanobubble Cages with EnhanceElectrochemical Properties

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Author(s)

Detail(s)

Original languageEnglish
Article number1700158
Journal / PublicationSmall Methods
Volume1
Issue number7
Publication statusPublished - 7 Jul 2017
Externally publishedYes

Abstract

Metal–organic frameworks (MOFs) have been widely employed as precursors to prepare various nanostructured functional materials. Here, a “nanoparticles-in-MOF” dual-template approach for generating complex cobalt sulfide (CoS) nanobubble cages is reported. A novel nanoparticles-in-MOF hybrid structure consisting of a Co-based MOF polyhedron host and many encapsulated mesostructured TiO<sub>2</sub> nanospheres is first prepared, fol-lowed by a sulfidation process to obtain a complex cage structure consisting of CoS nanobubbles in the shell. Importantly, this strategy can be extended to prepare many other functional nanoparticles-in-MOF hybrid structures. When evaluated as an electrode material for hybrid supercapacitors, the as-derived CoS nanobubble cages display remarkable electrochemical performance with long cycle life and good rate capability. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • CoS, hybrid supercapacitors, MOF composites, nanobubbles, ZIF-67

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