| Engineering MoS2/SiC interfaces for superior electrocatalytic oxygen and hydrogen evolution reactions |
| Norah Salem Alsaiari1, Iram Manzoor2, Zobia Siddique3, Zubaida fareed4, Mohamed Ouladsmane5, Maryum Naz6, Shafiq Ur Rehman7, Abdul Rasheed Rashid8, Asmaa Benettayeb9,10, Mika Sillanpaa11,12,13,14,15 |
1Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P. O. Box 84428, 11671, Riyadh, Saudi Arabia
2Department of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
3Women University, Multan, Pakistan
4Department of Zoology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
5Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
6University of Engineering and Technology, Lahore, Pakistan
7Department of Physics, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
8School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China
9Laboratoire de Physico-Chimie des Matériaux Catalyse et Environnement (LPMCCE), Université des Sciences et de Technologie Mohamed Boudiaf, BP 1505, Oran, Algeria
10Laboratoire de Génie Chimique et de Catalyse Hétérogène, Département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505 EL-M’NAOUAR, 31000, Oran, Algeria
11Functional Materials Group, Gulf University for Science and Technology, Mubarak Al-Abdullah, 32093, Kuwait, Kuwait
12Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura-140401, Punjab, India
13Division of Research and Development, Lovely Professional University, Phagwara, 144411, Punjab, India
14Adnan Kassar School of Business, Lebanese American University, Beirut, Lebanon
15Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa |
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Received: February 14, 2025; Revised: July 8, 2025 Accepted: July 11, 2025. Published online: August 22, 2025. |
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| ABSTRACT |
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Electrochemical water splitting is a green, eco-friendly, and efficient hydrogen synthesis process that consists of two half-reactions: the oxygen evolution reaction (OER) and the hydrogen evolution reaction. Because of the sluggish reaction kinetics of the OER and HER, electrochemical water splitting frequently requires an elevated voltage than theoretical, resulting in significant energy loss. Herein, we report MoS2/SiC/GC by the integration of MoS2 with SiC by a straightforward hydrothermal method. X-rays diffraction (XRD) indicates that MoS2/SiC has a crystallite structure, which improves catalytic performance for OER and HER with the best electrocatalytic activity by showing overpotentials of 230 mV for OER and 317 mV for HER in 1 M KOH at 10 mAcm-2 with Tafel slope of 65 mVdec-1 and 91 mVdec-1. Furthermore, with a non-faradic CV region, the MoS2/SiC/GC composite exhibited high capacitance and high electrochemical active surface area (528 cm2). The chronoamperometric test confirmed the long-term endurance of OER/HER for 35/64 h without compromising current density. Hence, overall, this work provides a notable composite approach using Si and Mo based elements, bringing in a new era of good design and the development of noble material alternatives in the commercial electrolysis sector. |
| Key words:
MoS2SiC · Nanocomposite · Hydrothermal method · Green energy · OER · HER |
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