Volume 45, Issue 2 pp. 2931-2944
RESEARCH ARTICLE

In-situ formation of an efficient trimetallic (CuZnAg) electrocatalyst for water oxidation

Muhammad Akbar

Muhammad Akbar

Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan

Center for Energy Storage Research, Korea Institute of Science and Technology & KIST School, Korea University of Science and Technology, Seoul, Republic of Korea

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Afzal Shah

Corresponding Author

Afzal Shah

Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan

Correspondence Ghulam Ali, U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan.

Email: [email protected]

Afzal Shah, Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan. Email: [email protected]

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Faiza Jan Iftikhar

Faiza Jan Iftikhar

Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan

NUTECH School of Applied Sciences and Humanities, National University of Technology, Islamabad, Pakistan

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Ghulam Ali

Corresponding Author

Ghulam Ali

U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), Islamabad, Pakistan

Correspondence Ghulam Ali, U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan.

Email: [email protected]

Afzal Shah, Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan. Email: [email protected]

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HyukSu Han

HyukSu Han

Department of Energy Engineering, Konkuk University, Seoul, Republic of Korea

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Gul Rahman

Gul Rahman

Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan

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First published: 12 October 2020
Citations: 6

Summary

There is a need to develop highly efficient electrocatalysts based on non-noble metals which can be used for water splitting. Thus, to realize an acceptable oxygen evolution reaction (OER) performance, a combination of non-noble metals was used to improve the architecture and conducive to a facile OER. For this purpose, a binder-free and non-noble metal-based trimetallic (CuZnAg) composite OER a electrocatalyst was grown at the surface of fluorine-doped tin oxide by a facile one step in-situ electrodeposition method using chronoamperometry. The formation and performance of the catalyst were ensured from XRD, SEM, EDX, chronoamperometry, and linear scan voltammetry. The trimetallic composite showed good results toward OER in 1 M KOH electrolyte at pH 13 at a current density of 1 mA/cm2 with an overpotential of 303 mV at a scan rate of 10 mV/sec. The results revealed robust electrochemical durability under alkaline conditions and the electrocatalyst holds great promise for OER.

CONFLICT OF INTEREST

The authors declare no competing financial interest.

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