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Hierarchical nanocomposite of cobalt sulfide nanoflakes-decorated reduced graphene oxide for enhancing the electrocatalytic hydrogen evolution reaction
- Authors
- Muthu, Senthilkumar; Gandhi, Mano Balaji; Saravanan, S.; Sekar, Sankar; Arun Kumar, S.; Ilanchezhiyan, P.; Lee, Sejoon; Sridharan, Moorthy Babu
- Issue Date
- Jan-2024
- Publisher
- Elsevier Ltd
- Keywords
- CoS/rGO nanocomposites; Electrocatalyst; Hierarchical nanostructures; Hydrogen evolution reaction; Water splitting
- Citation
- International Journal of Hydrogen Energy, v.52, pp 1405 - 1414
- Pages
- 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- International Journal of Hydrogen Energy
- Volume
- 52
- Start Page
- 1405
- End Page
- 1414
- ISSN
- 0360-3199
1879-3487
- 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. © 2023 Hydrogen Energy Publications LLC
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Related Researcher
- Sekar, Sankar
- College of Advanced Convergence Engineering