CoSe2@Co3O4 nanostructures: A promising catalyst for oxygen evolution reaction in alkaline media

Abdul Hanan; Muhammad Yameen Solangi; Muhammad Nazim Lakhan; Abdulaziz Alhazaa; Muhammad Ali Shar; Abdul Jaleel Laghari; Imtiaz Ali Soomro; Muhammad Ishaque Abro; Mukesh Kumar; Umair Aftab

Catalysis Communications (Jan 2024)

CoSe2@Co3O4 nanostructures: A promising catalyst for oxygen evolution reaction in alkaline media

Abdul Hanan,
Muhammad Yameen Solangi,
Muhammad Nazim Lakhan,
Abdulaziz Alhazaa,
Muhammad Ali Shar,
Abdul Jaleel Laghari,
Imtiaz Ali Soomro,
Muhammad Ishaque Abro,
Mukesh Kumar,
Umair Aftab

Affiliations

Abdul Hanan: Sunway Center for Electrochemical Energy and Sustainable Technology, SCEEST, Sunway University, Malaysia; Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan; Corresponding author at: Sunway Center for Electrochemical Energy and Sustainable Technology, SCEEST, Sunway University, Malaysia.
Muhammad Yameen Solangi: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan
Muhammad Nazim Lakhan: Applied Chemistry and Environmental Science, School of Science, STEM College, RMIT University, Melbourne, Australia
Abdulaziz Alhazaa: Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, Saudi Arabia
Muhammad Ali Shar: Department of Mechanical & Energy Systems Engineering, Faculty of Engineering and Informatics, University of Bradford, United Kingdom
Abdul Jaleel Laghari: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan
Imtiaz Ali Soomro: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan
Muhammad Ishaque Abro: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan
Mukesh Kumar: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan
Umair Aftab: Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology Jamshoro, Pakistan; Corresponding author at: Sunway Center for Electrochemical Energy and Sustainable Technology, SCEEST, Sunway University, Malaysia.

Journal volume & issue: Vol. 186
p. 106830

Abstract

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Synergistic integration based on some transition-metal (TM) derived compounds is a unique and appealing technique, especially toward oxygen evolution reaction (OER) under alkaline circumstances. Herein, we present a cobalt-selenide (CoSe2) and cobalt-oxide (Co3O4) based composite (CSCO-2) material through a wet chemical method. As-prepared catalyst has been analyzed for various physicochemical characterizations. CSCO-2 offers efficient OER performance in 1.0 M KOH with an overpotential of 252 mV at current density of 20 mA/cm2, with a low Tafel slope value of 69 mV/dec. Importantly, as-prepared catalyst shows stability of 48 h for longer electrochemical performance as a potential candidate for OER.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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