Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 31, Pages 15927-15934Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03766b
Keywords
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Funding
- National Natural Science Foundation of China [21222505, 21475124]
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As advanced catalysts for hydrogen evolution reaction (HER), MoS2-based electrocatalysts have attracted tremendous attention due to their enhanced HER activity. Herein, a facile method is reported to prepare a new type of defect-and S-rich ultrathin MoS2 nanosheet embedded N-doped carbon nanofiber composite (MoS2/NCNFs), which demonstrates a small HER overpotential of 135 mV at 10 mA cm(-2) and a large cathodic current density of 65.6 mA cm(-2) at only 200 mV. Furthermore, a small Tafel slope of 48 mV dec(-1), a large exchange current density of 24.2 mA cm(-2), as well as superior cycling stability are obtained. This success of embedding defect-and S-rich ultrathin MoS2 nanosheets in N-doped carbon nanofibers paves a new avenue for highly efficient catalysts for HER in the near future.
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