Interfacial coupling of amorphous cobalt boride with g-C3N4 nanosheets for superior oxygen evolution reaction

M. A. Suliman; M. H. Suliman; A. Adam; C. Basheer; Z. H. Yamani; M. Qamar

doi:10.1016/j.matlet.2020.127593

Interfacial coupling of amorphous cobalt boride with g-C₃N₄ nanosheets for superior oxygen evolution reaction

M. A. Suliman, M. H. Suliman, A. Adam, C. Basheer, Z. H. Yamani, M. Qamar^*

^*Corresponding author for this work

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

14 Scopus citations

Abstract

Herein, the preparation of a novel nanostructured electrocatalyst (CoB/g-C₃N₄) and its performance towards oxygen evolution reaction (OER) is demonstrated. The findings indicate the existence of an effective synergy operating between amorphous CoB and g-C₃N₄, leading to the high electrochemically active surface area, low electrochemical impedance and charge transfer resistance. As a result, the CoB/g-C₃N₄ electrode requires substantially lower overpotential (360 mV) with a small Tafel slope (94.4 mV dec⁻¹) as compared to bare CoB (103.5 mV dec⁻¹) and g-C₃N₄ (140.2 mV dec⁻¹) electrodes to generate the benchmark 10 mA cm⁻².

Original language	English
Article number	127593
Journal	Materials Letters
Volume	268
DOIs	https://doi.org/10.1016/j.matlet.2020.127593
State	Published - 1 Jun 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Composite materials
Electrocatalysis
Energy storage and conversion
Nanosheets

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.matlet.2020.127593

Cite this

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title = "Interfacial coupling of amorphous cobalt boride with g-C3N4 nanosheets for superior oxygen evolution reaction",

abstract = "Herein, the preparation of a novel nanostructured electrocatalyst (CoB/g-C3N4) and its performance towards oxygen evolution reaction (OER) is demonstrated. The findings indicate the existence of an effective synergy operating between amorphous CoB and g-C3N4, leading to the high electrochemically active surface area, low electrochemical impedance and charge transfer resistance. As a result, the CoB/g-C3N4 electrode requires substantially lower overpotential (360 mV) with a small Tafel slope (94.4 mV dec−1) as compared to bare CoB (103.5 mV dec−1) and g-C3N4 (140.2 mV dec−1) electrodes to generate the benchmark 10 mA cm−2.",

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author = "Suliman, {M. A.} and Suliman, {M. H.} and A. Adam and C. Basheer and Yamani, {Z. H.} and M. Qamar",

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doi = "10.1016/j.matlet.2020.127593",

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T1 - Interfacial coupling of amorphous cobalt boride with g-C3N4 nanosheets for superior oxygen evolution reaction

AU - Suliman, M. A.

AU - Suliman, M. H.

AU - Adam, A.

AU - Basheer, C.

AU - Yamani, Z. H.

AU - Qamar, M.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Herein, the preparation of a novel nanostructured electrocatalyst (CoB/g-C3N4) and its performance towards oxygen evolution reaction (OER) is demonstrated. The findings indicate the existence of an effective synergy operating between amorphous CoB and g-C3N4, leading to the high electrochemically active surface area, low electrochemical impedance and charge transfer resistance. As a result, the CoB/g-C3N4 electrode requires substantially lower overpotential (360 mV) with a small Tafel slope (94.4 mV dec−1) as compared to bare CoB (103.5 mV dec−1) and g-C3N4 (140.2 mV dec−1) electrodes to generate the benchmark 10 mA cm−2.

AB - Herein, the preparation of a novel nanostructured electrocatalyst (CoB/g-C3N4) and its performance towards oxygen evolution reaction (OER) is demonstrated. The findings indicate the existence of an effective synergy operating between amorphous CoB and g-C3N4, leading to the high electrochemically active surface area, low electrochemical impedance and charge transfer resistance. As a result, the CoB/g-C3N4 electrode requires substantially lower overpotential (360 mV) with a small Tafel slope (94.4 mV dec−1) as compared to bare CoB (103.5 mV dec−1) and g-C3N4 (140.2 mV dec−1) electrodes to generate the benchmark 10 mA cm−2.

KW - Composite materials

KW - Electrocatalysis

KW - Energy storage and conversion

KW - Nanosheets

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