Abstract
The typical design and synthesis of more economical, efficient, and stable bifunctional electrocatalysts is still challenging while focusing on overall water splitting. We synthesized ruthenium (Ru) modified rGO embedded CoTe nanowires via solvothermal method. SEM, XRD, FTIR, XPS and Raman analysis were performed to elucidate morphology and structural aspects of synthesized nanostructures. The electrocatalytic water redox kinetics revealed endorsed activity of Ru sites modulation in rGO/CoTe electronic structure in promoting hydrogen evolution reaction. The low overpotential values of 64 mV and 115 mV at 10mAcm−2 current density for HER explains paranormal behavior of these Ru doped rGo/CoTe nanowires. Ru-rGO/CoTe nanowires exhibited extraordinary bifunctional activity by lowering water dissociation energy and adsorption energy for reaction intermediates thus resulted reduced cell voltage in overall water splitting. 5% Ru-rGO/CoTe and 10% Ru-rGO/CoTe based electrolytic cell requires 1.57V and 1.43V at 10 mAcm−2 current density which shows remarkable catalytic behavior.
| Original language | English |
|---|---|
| Article number | 127356 |
| Journal | Materials Chemistry and Physics |
| Volume | 296 |
| DOIs | |
| State | Published - 15 Feb 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 Elsevier B.V.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
Keywords
- Bifunctional electrocatalyst
- HER selectivity
- Nanowires
- Overall water splitting
- Solvothermal
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
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