In:
Dalton Transactions, Royal Society of Chemistry (RSC), Vol. 52, No. 25 ( 2023), p. 8530-8535
Kurzfassung:
Metallic phase (1T) MoS 2 has been regarded as an ideal catalytic material for the hydrogen evolution reaction (HER) due to its high active site density and favorable electrical conductivity. However, the preparation of 1T-phase MoS 2 samples requires tough reaction conditions and 1T-MoS 2 has poor stability under alkaline conditions. In this work, 1T-MoS 2 /NiS heterostructure catalysts grown in situ on carbon cloth were prepared by a simple one-step hydrothermal method. The obtained MoS 2 /NiS/CC combines the advantages of high active site density and a self-supporting structure, achieving stable 77% metal phase (1T) MoS 2 . The combination of NiS and 1T-MoS 2 enhances the intrinsic activity of MoS 2 while the electrical conductivity is improved. These advantages enable the 1T-MoS 2 /NiS/CC electrocatalyst to have a low overpotential of 89 mV (@10 mA cm −2 ) and a small Tafel slope of 75 mV dec −1 under alkaline conditions and provide a synthetic strategy of stable 1T-MoS 2 -based electrocatalysts for the HER by a heterogeneous structure.
Materialart:
Online-Ressource
ISSN:
1477-9226
,
1477-9234
Sprache:
Englisch
Verlag:
Royal Society of Chemistry (RSC)
Publikationsdatum:
2023
ZDB Id:
1472887-4