Abstract
The hydrogen evolution reaction (HER) driven by electrocatalytic water splitting is attaining prevalent attention for the manufacturing of clean and green hydrogen energy. Herein, we report the simple one-step hydrothermal synthesis of cobalt sulfide nanoflakes decorated with reduced graphene oxide (CoS/rGO) nanocomposites as an effective electrode material for HER. The CoS/rGO nanocomposites exhibited the rGO nanosheet-decorated hierarchically interconnected CoS nanoflakes structure. The CoS/rGO nanocomposites exhibited an excellent HER activity with a low overpotential of 371 mV and a small Tafel slope of 103 mV/dec. More interestingly, the catalytic stability of CoS/rGO nanocomposites is comparatively higher than the pristine CoS NFs. These results suggest that the facile nanocomposites of CoS/rGO could be a prominent catalytic material for effective green hydrogen production.
Original language | English |
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Pages (from-to) | 1405-1414 |
Number of pages | 10 |
Journal | International Journal of Hydrogen Energy |
Volume | 52 |
DOIs | |
State | Published - 2 Jan 2024 |
Keywords
- CoS/rGO nanocomposites
- Electrocatalyst
- Hierarchical nanostructures
- Hydrogen evolution reaction
- Water splitting