Journal
ELECTRONIC MATERIALS LETTERS
Volume 12, Issue 6, Pages 789-794Publisher
KOREAN INST METALS MATERIALS
DOI: 10.1007/s13391-016-6107-0
Keywords
WS2; Fe3O4 nanoparticles; nanocomposites; raman; electrochemical behaviors
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Funding
- Six Talents Peak Project in Jiangsu Province [2011-ZBZZ045]
- Jiangsu Province Ordinary University Graduate Student Innovation Project [SJLX_0462, SJLX15_0489]
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Graphene-like dichalcogenides with huge surface area and nanostructured transition metal oxides with extraordinarily high theoretical capacities could be composited as promising electrode candidates for supercapacitors. In this work, monolayer and few-layers WS2 nanosheets were exfoliated by combination of ball-milling and sonication. A facile strategy for the hierarchical self-assembly of Fe3O4 nanoparticles (Fe(3)O(4)NPs) on WS2 nanosheets was developed to synthesize Fe(3)O(4)NPs@WS2 nanocomposites via hydrothermal method. Fe(3)O(4)NPs are uniformly dispersed on the WS2 nanosheets without aggregation. The particle size of Fe(3)O(4)NPs is about 3 nm. The nanocomposite shows strong enhancements of electrochemical behaviors. This self-assembly synthesis strategy may have great prospects for other 0D/2D nanocomposites in supercapacitors and other energy devices.
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