Hamzan, Najwa and Sookhakian, Mehran and Sarjidan, Mohd Arif Mohd and Tripathi, Manoj and Dalton, Alan B. and Goh, Boon Tong and Alias, Yatimah (2023) Synthesis of Manganese Silicide Nanowires by Thermal Chemical Vapor Deposition for the Hydrogen Evolution Reaction. ACS Applied Nano Materials, 6 (13). pp. 12140-12149. ISSN 2574-0970, DOI https://doi.org/10.1021/acsanm.3c01894.
Full text not available from this repository.Abstract
Thermalchemical vapor deposition investigated the growth-alignedmanganese silicide (MnSi) nanowires on a c-Si(111) substrate. Thegrowth, composition, and morphology of MnSi nanowires were studiedin detail using X-ray diffraction, transmission electron microscopy,field emission electron microscopy, and X-ray photoelectron spectroscopyat different reaction pressures (0.03, 0.12, 0.52, 1.20, and 6.20mbar). The effect of reaction pressure on the electrocatalytic activityof MnSi nanowires in the hydrogen evolution reaction (HER) was exploredfurther. Compared to higher pressure, at lower pressure (0.12 mbar),the as-synthesized MnSi nanowire exhibits the greatest electrocatalyticperformance (1.2 mbar). The electrochemical impedance spectroscopyanalysis revealed that the increase in HER electrocatalytic activityof MnSi nanowires at a lower reaction pressure of 0.12 mbar is associatedwith increasing number of charge carriers transported by a reducingdiameter of the nanowires, which is a function of the reaction pressure.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education Malaysia via Fundamental Research Grant Scheme (FRGS/1/2019/STG02/UM/02/7), Universiti Malaya (ST066-2021), Sussex Strategic Development Fund |
| Uncontrolled Keywords: | MnSi; nanowires; thermal chemicalvapor deposition; reaction pressure; electrocatalytic; hydrogenevolution reaction |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 30 Jul 2025 02:58 |
| Last Modified: | 30 Jul 2025 02:58 |
| URI: | http://eprints.um.edu.my/id/eprint/50742 |
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