Selective Growth of Molybdenum Sulfo-Selenides on a Defect-Rich Carbon Nanotube Skeleton for Efficient Energy Storage and Hydrogen Generation Applications

摘要

The design of multifunctional advanced nanoma-terials is a fascinating and demanding approach to harness clean and sustainable energy. Two-dimensional metallic transition-metal chalcogenide-based alloys are regarded as a viable option for energy storage and hydrogen evolution reaction (HER) applications due to their improved electrical conductivity, presence of additional active sites, and capacity to make hybrids with various materials. Herein, a facile hydrothermal approach is employed to construct 1D/2D MoSSe@f-CNT heterostructures, and their energy storage/conversion performance was investigated, The fabricated asymmetric device based on MoSSe@f-CNT//VSe_2/ rGO/CNT showed a high specific capacitance of 111 F/g with a high energy density (26 Wh/kg) and power density (11,250 W/ kg). Also, the catalyst shows a decent electrocatalytic HER performance with a low overpotential value of 249 mV at a current density (j) of 10 mA cm~(-2) in a 0.5 M H_2SO_4 electrolyte.