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

doi:10.1016/j.catcom.2023.106830

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

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.

Original language	English
Article number	106830
Journal	Catalysis Communications
Volume	186
DOIs	https://doi.org/10.1016/j.catcom.2023.106830
State	Published - Jan 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023

Keywords

Alkaline media
CoO
CoSe
Electrocatalyst
OER
Wet chemical

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

Access to Document

10.1016/j.catcom.2023.106830

Cite this

@article{a48df6c5412448a5990ae6942e461fef,

title = "CoSe2@Co3O4 nanostructures: A promising catalyst for oxygen evolution reaction in alkaline media",

abstract = "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.",

keywords = "Alkaline media, CoO, CoSe, Electrocatalyst, OER, Wet chemical",

author = "Abdul Hanan and Solangi, \{Muhammad Yameen\} and Lakhan, \{Muhammad Nazim\} and Abdulaziz Alhazaa and Shar, \{Muhammad Ali\} and Laghari, \{Abdul Jaleel\} and Soomro, \{Imtiaz Ali\} and Abro, \{Muhammad Ishaque\} and Mukesh Kumar and Umair Aftab",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2024",

month = jan,

doi = "10.1016/j.catcom.2023.106830",

language = "English",

volume = "186",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - CoSe2@Co3O4 nanostructures

T2 - A promising catalyst for oxygen evolution reaction in alkaline media

AU - Hanan, Abdul

AU - Solangi, Muhammad Yameen

AU - Lakhan, Muhammad Nazim

AU - Alhazaa, Abdulaziz

AU - Shar, Muhammad Ali

AU - Laghari, Abdul Jaleel

AU - Soomro, Imtiaz Ali

AU - Abro, Muhammad Ishaque

AU - Kumar, Mukesh

AU - Aftab, Umair

PY - 2024/1

Y1 - 2024/1

N2 - 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.

AB - 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.

KW - Alkaline media

KW - CoO

KW - CoSe

KW - Electrocatalyst

KW - OER

KW - Wet chemical

UR - https://www.scopus.com/pages/publications/85181723446

U2 - 10.1016/j.catcom.2023.106830

DO - 10.1016/j.catcom.2023.106830

M3 - Article

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VL - 186

JO - Catalysis Communications

JF - Catalysis Communications

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