Facile fabrication of SnO2/MnTe nanocomposite as an efficient electrocatalyst for OER in basic media

• Published in: Journal of alloys and compounds 2024-09, Vol.1000, p.175036, Article 175036
• Main Authors: Zahra, Rida, Alrowaily, Albandari.W., Alotaibi, B.M., Alyousef, Haifa A., Al-Harbi, Nuha, Dahshan, A., Ahmad, Khursheed, Henaish, A.M.A.
• Format: Article
• Language: English
• Subjects: Alkaline media; Hydrogen energy; Oxygen evolution reaction Electrocatalyst; SnO2/MnTe; Water splitting
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2024.175036

There is a strong demand for developing an extremely effective and robust electrocatalyst to facilitate oxygen evolution reaction in water electrolysis applications. Herein, we successfully produced SnO2/MnTe using an efficient ultrasonication technique that is cost-effective and readily accessible along with improved catalytic behavior. The physical properties of fabricated catalysts are examined to analyze textural, structural and morphological characteristics. The SnO2/MnTe nanocomposite exhibited the low overpotential (181 mV) at 10 mA cm−2 and smaller Tafel slope of 33 mV dec−1 in alkaline (1.0 M KOH) medium. Moreover, the material also showed prolonged and excellent stability over 50 h following 5000 stability cycles. Electrochemical impedance spectroscopy studies demonstrated that charge transfer kinetics at the catalyst-electrolyte interface could be achievable, with lower Rct values (0.8Ω) directing it to increase electrochemical behavior. The acquired outcomes obtained from electrochemical activity demonstrate the potential of SnO2/MnTe as a highly promising electrocatalyst for future electrochemical energy generation. [Display omitted] •SnO2/MnTe nanocomposite has been prepared by ultrasonication process.•The nanocomposite exhibited overpotential (181 mV) at 10 mA cm−2 for OER.•It showed larger values of Cdl (46.1 mF) for OER performance.•Nanocomposite exhibited excellent stability for 50 h up to 5000 LSV cycles.