Sulfur-doped graphene/transition metal dichalcogenide heterostructured hybrids with electrocatalytic activity toward the hydrogen evolution reaction.

ABSTRACT: A facile route for the preparation of molybdenum disulfide (MoS₂) and tungsten disulfide (WS₂), uniformly deposited onto sulfur-doped graphene (SG), is reported. The realization of the SG/MoS₂ and SG/WS₂ heterostructured hybrids was accomplished by employing microwave irradiation for the thermal decomposition of ammonium tetrathiomolybdate and tetrathiotungstate, respectively, in the presence of SG. Two different weight ratios between SG and the inorganic species were used, namely 3 : 1 and 1 : 1, yielding SG/MoS₂ (3 : 1), SG/MoS₂ (1 : 1), SG/WS₂ (3 : 1) and SG/WS₂ (1 : 1). SG and all newly developed hybrid materials were characterized by ATR-IR and Raman spectroscopy, TGA, HR-TEM and EELS. The electroc

SUBMITTER: Kagkoura A 

PROVIDER: S-EPMC9418998 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature