Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 608, Issue -, Pages 922-930Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.10.042
Keywords
CoSe2; MoSe2; Reduced graphene oxide; Heterostructure; Hydrogen evolution reaction
Categories
Ask authors/readers for more resources
Hydrogen evolution reaction (HER) is a promising technology for addressing energy issues, and the catalyst CoSe2-MoSe2(1-1)/rGO exhibits impressive performance in both acidic and alkaline conditions.
It is important to develop novel energy to solve energy shortage and environmental problems. Hydrogen evolution reaction (HER) is envisaged as a viable technology that can be used to develop sustainable clean energy. Herein, we report a catalyst with CoSe2-MoSe2 heterostructure grown on reduced graphene oxide with an optimum Co/Mo proportion of 1:1 (CoSe2-MoSe2(1-1)/rGO). It exhibits good HER activities in both acidic and alkaline conditions. The CoSe2-MoSe2(1-1)/rGO shows an overpotential of 107 mV at 10 mA cm(2) with a Tafel slope of 56 mV dec (1) under acidic condition. Meanwhile, CoSe2-MoSe2(1-1)/rGO also presents an overpotential of 182 mV at 10 mA cm (2) and with a Tafel slope of 89 mV dec (1) under alkaline condition. These impressive performances of the catalyst are mainly due to the excellent electronic transmission capability of rGO and the abundant active sites of CoSe2-MoSe2 heterostructure as well as the optimized hydrogen adsorption energy of CoSe2-MoSe2 interface. The design of CoSe2-MoSe2(1-1)/rGO provides a meaningful guide for manufacturing electrode in energy storage and conversion. (C) 2021 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available