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Electrochemical hydrogen evolution and storage studies on bismuth nano hexagons |
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| Authors: | Sandeep Gupta Rini Singh Garima Agarwal Kanad Ray S.L. Kothari Ajay S. Verma Vibhav K. Saraswat Kamlendra Awasthi Manoj Kumar |
| Affiliation: | 1. Amity Institute of Biotechnology, Amity University Rajasthan, Kant Kalwar, NH-11C, Jaipur, 303002, Rajasthan, India;2. Department of Physics, Malaviya National Institute of Technology, JLN Marg, Jaipur, 302017, Rajasthan, India;3. Department of Physics, Banasthali Vidyapith, Banasthali-304022, Rajasthan, India;4. Department of Physics, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364002, Gujarat, India;5. Amity School of Applied Sciences, Amity University Rajasthan, Kant Kalwar, NH-11C, Jaipur, 303002, Rajasthan, India;6. Department of Physics, ACC Wing, Indian Military Academy, Dehradun, 24800, Uttarakhand, India |
| Abstract: | Bismuth nano hexagons were synthesized using potentiostatic electrodeposition and studied for their performance towards electrochemical hydrogen storage and evolution. Regular hexagons with edge length ≈ 500 nm and thickness ≈ 80 nm were observed in scanning electron microscopy (SEM). X-ray diffraction (XRD) pattern indicates the presence of poly-crystalline bismuth and bismuth oxide in rhombohedral and cubic phases respectively. X-ray photoelectron spectroscopy (XPS) studies further confirm the presence of two phases of bismuth i.e. elemental bismuth and bismuth (III) oxide. Results indicate that these nano hexagons show good hydrogen ion (H+) storage and successive hydrogen gas (H2) evolution characteristics. |
| Keywords: | Electrochemical hydrogen storage Hydrogen evolution reaction Nano hexagons Potentiostatic electrodeposition |
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