Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 28, Pages 10893-10899Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta04150g
Keywords
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Funding
- Singapore MOE AcRF Tier 1 grants [RG2/13, RG113/15]
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One-dimensional (1D) carbon-supported nanostructured CoP and FeP4 were prepared using fibrous elastin proteins that served as starting materials through an oil-phase method and the as-synthesized products were investigated for their lithium and sodium storage properties. The 1D CoP and FeP4 are composed of nanosized particles decorated on carbon supports. The 1D CoP and FeP4 nanostructures are similar to 2 mu m in length and 20-50 nm in diameter. The particles on the exterior of the 1D structure are 5-10 nm in diameter. To investigate the as-synthesized 1D TMPs in energy storage applications, the as-synthesized 1D CoP nanostructures are applied as an anode material in half-cells for LIBs and SIBs. For lithium storage performances, the anode delivers a specific capacity as high as similar to 740 mAh g(-1) at 0.2C and shows good rate performance and capacity retention as well as high rate capability (e.g. a stable specific capacity of similar to 365 mAh g(-1) for 120 cycles at 3.0C). In SIBs, at 0.2 and 5.0C, the specific capacities of 491.60 and 314.84 mAh g(-1) are delivered, respectively. When tested at 1.0, 2.0, and 5.0C, the specific capacities are stable at similar to 400, 360, and 300 mAh g(-1) over 250, 250, and 1000 cycles, respectively.
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