Porous high-entropy alloys as efficient electrocatalysts for water-splitting reactions

Adewale K. Ipadeola; Augustus K. Lebechi; Lesego Gaolatlhe; Aderemi B. Haruna; Mira Chitt; Kamel Eid; Aboubakr M. Abdullah; Kenneth I. Ozoemena

Electrochemistry Communications (Mar 2022)

Porous high-entropy alloys as efficient electrocatalysts for water-splitting reactions

Adewale K. Ipadeola,
Augustus K. Lebechi,
Lesego Gaolatlhe,
Aderemi B. Haruna,
Mira Chitt,
Kamel Eid,
Aboubakr M. Abdullah,
Kenneth I. Ozoemena

Affiliations

Adewale K. Ipadeola: Center for Advanced Materials, Qatar University, Doha, P.O. Box 2713, Qatar; Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg 2050, South Africa
Augustus K. Lebechi: Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg 2050, South Africa
Lesego Gaolatlhe: Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg 2050, South Africa
Aderemi B. Haruna: Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg 2050, South Africa
Mira Chitt: Global College of Engineering and Technology (GCET), P.O. Box 2546, CPO Ruwi 112, Sultanate of Oman
Kamel Eid: Gas Processing Center (GPC), College of Engineering Qatar University, PO Box 2713, Doha, Qatar; Corresponding authors.
Aboubakr M. Abdullah: Center for Advanced Materials, Qatar University, Doha, P.O. Box 2713, Qatar; Corresponding authors.
Kenneth I. Ozoemena: Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg 2050, South Africa; Corresponding authors.

Journal volume & issue: Vol. 136
p. 107207

Abstract

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Porous high-entropy alloys (HEAs) have emerged as promising electrocatalysts for water-splitting reactions, owing to their rich dissimilar active sites, elemental diversity, and multiple functionalities. The rational design of HEAs for water-splitting attracted great interest in improving their current performance, so it is essential to provide timely updates on this field. This review emphasizes the preparation methods of porous HEAs and the effect of their salient features like high configurational entropy, cocktail effect, lattice distortion, and sluggish diffusion on oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). This mini-review also provides some insights into the current limitations and future perspectives to direct research on the development of ideal HEAs for OER and HER.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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