| Facile fabrication of nickel selenide with manganese telluride (NiSe/MnTe) nanocomposite employed as strong electrocatalyst in oxygen evolution reaction |
| Nirma Rasool1, Haifa A. Alyousef2, Albandari W. Alrowaily2, B. M. Alotaibi2, Abdullah G. Al-Sehemi3,4, Khursheed Ahmad5 |
1Department of Chemistry, Government Graduate College, Taunsa Sharif, 32100, Pakistan
2Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
3Research Center for Advanced Materials Science (RCAMS), King Khalid University, 61413, Abha, Saudi Arabia
4Department of Chemistry, College of Science, King Khalid University, 61413, Abha, Saudi Arabia
5School of Materials Science and Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea |
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Received: March 23, 2024; Revised: June 10, 2024 Accepted: July 5, 2024. Published online: October 21, 2024. |
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| ABSTRACT |
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The production of sustainable energy resources is essential to replace dependence on fossil fuels, mitigate power crises and ecological damage that are of great concern these days. In this analysis, a cost-effective hydrothermal process was applied to develop nickel selenide (NiSe), manganese telluride (MnTe) and the nanocomposite of nickel selenide with manganese telluride (NiSe/MnTe), which was tested as an active catalyst for OER in a standard solution (1.0 M KOH). Introducing NiSe in the MnTe material showed considerable OER kinetics, because of their combined impact. The elemental composition, crystal structure and surface area of synthesized substances were analyzed by physical analysis. Electrochemical characterizations of NiSe/MnTe nanocomposite explained an excellent oxidizing activity across OER at j (10 mA cm−2), such as lowered overpotential (η = 170 mV), lower Tafel slope value (32 mA dec−1). NiSe/MnTe nanocomposite has improved OER kinetic and long-term durability after 5000th cycles for 60 h than pristine NiSe and MnTe. The exceptional electrochemical activity of NiSe/MnTe nanocomposite makes it a suitable candidate for OER. |
| Key words:
Electrocatalyst · NiSe/MnTe · Hydrothermal synthesis · OER · Alkaline medium |
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