Complex cobalt sulfide nanobubble cages with enhanced electrochemical properties
Metal-organic frameworks (MOFs) have been widely employed as precursors to prepare various nanostructured functional materials. Here we report a “nanoparticles-in-MOF” dual-template approach for generating complex cobalt sulphide (CoS) nanobubble cages. A novel nanoparticles-in-MOF hybrid structure...
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| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/139968 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Metal-organic frameworks (MOFs) have been widely employed as precursors to prepare various nanostructured functional materials. Here we report a “nanoparticles-in-MOF” dual-template approach for generating complex cobalt sulphide (CoS) nanobubble cages. A novel nanoparticles-in-MOF hybrid structure consisting of a Co-based MOF polyhedron host and many encapsulated mesostructured TiO2 nanospheres is first prepared, followed 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 manifest remarkable electrochemical performance with long cycle life and good rate capability. |
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