Abstract
The space-confined growth by in-situ formed polysaccharides during hydrothermal process is successfully employed to fabricate ultrathin MoS2 nanosheets, which further evolve to MoS2/C evenly integrating nanosheets (2–4 nm) with conducting carbon after carbonization. The MoS2/C exhibits an excellent activity for hydrogen evolution reaction (HER) with a small onset overpotential of ∼80mV and a high current density of 88mAcm−2 at η = 200 mV, which is associated with the enriched rim-sites on ultrathin MoS2 and the improved conductivity by carbon matrix. This work demonstrates that the ultrathin MoS2 nanosheets within carbon, possessing synergistically-enhanced activity and conductivity for HER, are feasible through the space-confined growth based on polysaccharide matrix, and this would open up new opportunities for exploiting highly efficient electrocatalysts.
Published Version
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