| Autor: |
Asad Ali, Fengxing Liang, Huiyan Feng, Mei Tang, Syed Jalil Shah, Fawad Ahmad, Xiaoyan Ji, Pei Kang Shen, Jinliang Zhu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Materials Science for Energy Technologies, Vol 6, Iss , Pp 301-309 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2589-2991 |
| DOI: |
10.1016/j.mset.2023.01.004 |
| Popis: |
Optimizing electrocatalytic activity and recognizing the most reactive sites for oxygen evolution reaction (OER) electrocatalysts are valuable to the order of renewable power. In this research article, we explored an innovative in-situ annealing technique for constructing iron carbide nanoparticles (Fe3C NPs) encapsulated via nitrogen and phosphorous doped bamboo-shape carbon nanotubes (NP-CNTs) for OER. Interestingly, the constructed Fe3C NPs@NP-CNT-800 composite exhibited remarkable electrochemical operation and offered a stable current density of 10 mA/cm2 at a lower overpotential (280 mV) in an alkaline solution. Furthermore, an innovative Fe3C NPs@N,P-CNT-800 hybrid surpassed the standard RuO2 electrocatalyst in terms of OER performance and showed negligible degradation in chronoamperometric (21 h) and chronopotentiometry (3000 cycles) analyses. The remarkable performance and stability are ascribed to the Fe3C NPs, novel tubular bamboo-like morphology of its carbon materials, and heteroatom doping, which contribute to the electrochemical interfaces, large surface area, active catalytic sites, and rapid charge transfer kinetics. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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