Ni-based nanocomposite material as a highly efficient catalyst for electrochemical production of hydrogen
Author | Almomani F. |
Available date | 2022-04-25T08:00:17Z |
Publication Date | 2021 |
Publication Name | International Journal of Hydrogen Energy |
Resource | Scopus |
Identifier | http://dx.doi.org/10.1016/j.ijhydene.2020.03.007 |
Abstract | The present study reports a simple, inexpensive, and direct method for the preparation of nanocomposite (NC) material (Ni/Co-NC) as advanced catalysts for hydrogen production (HP). The Ni/Co-NC was prepared using solvothermal method (STM) followed by thermal annealing, characterized and tested for HP in 0.6 M H2SO4. The as-synthesized Ni/Co-NC contains a high density of active edge sites, exhibits high electro-catalytic HP activity under small cathodic onset potential (VON-P) of −0.03 V, and a small Tafel slope of approximately 29 mV/decade, which exceeds the activity of previously studied Pt-free catalysis. Annealing temperature significantly affects the Ni/Co-NC activity toward HP by forming active nanoparticles with an optimum identified at 250 °C. The HP process is controlled via Volmer-Tafel charge-transfer mechanism over the electrode interface. The presented method can be used as a new strategy for manufacturing advanced electro-catalysts for the production of hydrogen from different resources. |
Language | en |
Publisher | Elsevier Ltd |
Subject | Cell potential Charge transfer Composite material Electro-catalyst Electrochemical |
Type | Article |
Pagination | 4691-4698 |
Issue Number | 6 |
Volume Number | 46 |
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Chemical Engineering [1174 items ]