Ni doped Bi2WO6 for electrochemical OER activity
| Autor: | B. Jansi Rani, Rathinam Yuvakkumar, Mariyappan Thambidurai, Ganesan Ravi, B. Saravanakumar, Sp. Keerthana, Sun Ig Hong, Dhayalan Velauthapillai, Cuong Dang |
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| Rok vydání: | 2020 |
| Předmět: |
Nanostructure
Materials science Dopant Renewable Energy Sustainability and the Environment Doping Energy Engineering and Power Technology 02 engineering and technology Overpotential 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences 0104 chemical sciences Fuel Technology Chemical engineering Electrode 0210 nano-technology Nanoneedle Electrochemical potential |
| Zdroj: | International Journal of Hydrogen Energy. 45:18859-18866 |
| ISSN: | 0360-3199 |
| Popis: | Due to over depletion of fossil fuels, researchers started to find hydrogen energy to compete with the energy demands. Bi2WO6 and Ni (5% and 10%) doped Bi2WO6 were prepared via hydrothermal route. Structural confirmation of undoped and doped Bi2WO6 nanostructures was estimated by using standard characterization studies. The nanoflake and nanoneedle like morphology of undoped and Ni doped Bi2WO6 was confirmed in nanoscale range. The highest OER activity was achieved for 10% Ni doped Bi2WO6 nanostructure electrode with the excellent current density of 272 mA/g with overpotential of 242 mV in the fabricated three electrode half cell set up. The higher electron transport offered by Ni ions to Bi2WO6 host has been reported with the electrochemical mechanism. Hence, the unusual robust electrodes for electrochemical potential applications by tuning its property via suitable foreign ion dopant could be the great beginning of this recent year research. In such a way, this work would be the better way of swapping of nobel metal catalysts for electrochemical OER activity. |
| Databáze: | OpenAIRE |
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