Journal
CHEMELECTROCHEM
Volume 5, Issue 24, Pages 3953-3960Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201801166
Keywords
CoS/NC@MoS2; ZIF-67; hollow spheres; hydrogen evolution reaction; lithium-ion batteries
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Funding
- National Natural Science Foundation of China [NSFC 21671005, 21171007]
- Anhui Provincial Natural Science Foundation for Distinguished Youth [1808085J27]
- Programs for Science and Technology Development of Anhui Province [1501021019]
- Recruitment Program for Leading Talent Team of Anhui Province
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Uniquely structured CoS/N-doped carbon@MoS2 (denoted as CoS/NC@MoS2) hollow spheres were successfully synthesized by using a well-designed N-rich Co-metal organic framework (ZIF-67) precursor and template. Owing to the good mechanical stability and conductivity of carbon hollow spheres, N-doped carbon, and Co Mo bonds, the as-prepared CoS/NC@MoS2 composites exhibit outstanding electrochemical performance both in electrocatalytic and energy storage applications. An overpotential of 77 mV at 10 mA cm(-2), and a Tafel slope of 67 mVdec(-1 )could be obtained in acid environment for the hydrogen evolution reaction. As an anode material for lithiumion batteries, the as-prepared composites exhibit good cycling stability with a high reversible specific capacity of 802.4 mA hg(-1) at a current density of 1 Ag-1 after 400 cycles and good rate capability.
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