International Journal of Hydrogen Energy, Vol.44, No.2, 977-987, 2019
Thermally reduced graphite oxide/carbon nanotubes supported molybdenum disulfide as catalysts for hydrogen evolution reaction
We report an efficient molybdenum disulfide (MoS2) supported by thermally reduced graphite oxide and carbon nanotubes (TRGO-CNT) for hydrogen evolution reaction. The TRGO-CNT-MoS2 composite is successfully prepared by a simple sonication process, exhibiting excellent catalytic activity of the hydrogen evolution reaction (HER) with a low overpotential of -0.14 V, which is much lower compared to that of MoS2, CNT-MoS2 and TRGO-MoS2, respectively. TRGO-CNT-MoS2 also exhibits high stability even after 1000 cycles and strong durability after 48 h. The high HER performance of TRGO-CNT-MoS2 attributes to a synergic effect of thermal reduced GO and CNT that support MoS2 due to significant decrease of electrochemical impedance and reliable supporting material for the efficient HER. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Keywords:Molybdenum disulfide;Thermally reduced graphite oxide;Carbon nanotubes;Hydrogen evolution reaction