A Co3O4-Ni thin film catalyst with enhanced electrocatalytic water splitting performance under a low external magnetic field

Anjali  -; Anu Prathap Mylamparambil Udayan; Madhu Samolia; Baljit Singh; Kirtanjot Kaur; Anandhakumar Sundaramurthy; Balwinder Kaur

doi:10.1016/j.mcat.2026.116256

A Co3O4-Ni thin film catalyst with enhanced electrocatalytic water splitting performance under a low external magnetic field

Anjali -
, Anu Prathap Mylamparambil Udayan
, Madhu Samolia
, Baljit Singh
, Kirtanjot Kaur
, Anandhakumar Sundaramurthy
, Balwinder Kaur

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

Abstract

Herein, we report a simple method for the preparation of Co3O4-Ni (Ni-Co) thin film by electrodeposition method. The resulting thin film exhibited enhanced bifunctional electrocatalytic activity toward overall water splitting. At a potential of 1.63 V, a current density of 10 mA cm–2 was attained for the OER process, whereas -0.224 V was needed for the HER process. The enhanced electrocatalytic efficacy of the proposed Ni-Co nanostructures is associated with the efficient dispersion of Co3O4 nanoparticles within the Ni framework, which enhanced both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activities. The density functional theory (DFT) investigations further reinforce the experimental results, providing strong theoretical confirmation for the enhanced catalytic performance of Co3O4-Ni for both OER and HER.

Original language	English (Ireland)
Article number	116256
Journal	Molecular Catalysis
Volume	603
DOIs	https://doi.org/10.1016/j.mcat.2026.116256
Publication status	Published - 5 Aug 2026

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10.1016/j.mcat.2026.116256

Cite this

@article{2e763084a40249889fc7946970420794,

title = "A Co3O4-Ni thin film catalyst with enhanced electrocatalytic water splitting performance under a low external magnetic field",

abstract = "Herein, we report a simple method for the preparation of Co3O4-Ni (Ni-Co) thin film by electrodeposition method. The resulting thin film exhibited enhanced bifunctional electrocatalytic activity toward overall water splitting. At a potential of 1.63 V, a current density of 10 mA cm–2 was attained for the OER process, whereas -0.224 V was needed for the HER process. The enhanced electrocatalytic efficacy of the proposed Ni-Co nanostructures is associated with the efficient dispersion of Co3O4 nanoparticles within the Ni framework, which enhanced both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activities. The density functional theory (DFT) investigations further reinforce the experimental results, providing strong theoretical confirmation for the enhanced catalytic performance of Co3O4-Ni for both OER and HER.",

author = "Anjali - and Udayan, \{Anu Prathap Mylamparambil\} and Madhu Samolia and Baljit Singh and Kirtanjot Kaur and Anandhakumar Sundaramurthy and Balwinder Kaur",

note = "{\textcopyright} 2026 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.",

year = "2026",

month = aug,

day = "5",

doi = "10.1016/j.mcat.2026.116256",

language = "English (Ireland)",

volume = "603",

journal = "Molecular Catalysis",

issn = "2468-8231",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - A Co3O4-Ni thin film catalyst with enhanced electrocatalytic water splitting performance under a low external magnetic field

AU - -, Anjali

AU - Udayan, Anu Prathap Mylamparambil

AU - Samolia , Madhu

AU - Singh, Baljit

AU - Kaur, Kirtanjot

AU - Sundaramurthy, Anandhakumar

AU - Kaur, Balwinder

PY - 2026/8/5

Y1 - 2026/8/5

N2 - Herein, we report a simple method for the preparation of Co3O4-Ni (Ni-Co) thin film by electrodeposition method. The resulting thin film exhibited enhanced bifunctional electrocatalytic activity toward overall water splitting. At a potential of 1.63 V, a current density of 10 mA cm–2 was attained for the OER process, whereas -0.224 V was needed for the HER process. The enhanced electrocatalytic efficacy of the proposed Ni-Co nanostructures is associated with the efficient dispersion of Co3O4 nanoparticles within the Ni framework, which enhanced both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activities. The density functional theory (DFT) investigations further reinforce the experimental results, providing strong theoretical confirmation for the enhanced catalytic performance of Co3O4-Ni for both OER and HER.

AB - Herein, we report a simple method for the preparation of Co3O4-Ni (Ni-Co) thin film by electrodeposition method. The resulting thin film exhibited enhanced bifunctional electrocatalytic activity toward overall water splitting. At a potential of 1.63 V, a current density of 10 mA cm–2 was attained for the OER process, whereas -0.224 V was needed for the HER process. The enhanced electrocatalytic efficacy of the proposed Ni-Co nanostructures is associated with the efficient dispersion of Co3O4 nanoparticles within the Ni framework, which enhanced both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activities. The density functional theory (DFT) investigations further reinforce the experimental results, providing strong theoretical confirmation for the enhanced catalytic performance of Co3O4-Ni for both OER and HER.

U2 - 10.1016/j.mcat.2026.116256

DO - 10.1016/j.mcat.2026.116256

M3 - Article

SN - 2468-8231

VL - 603

JO - Molecular Catalysis

JF - Molecular Catalysis

M1 - 116256

ER -

A Co3O4-Ni thin film catalyst with enhanced electrocatalytic water splitting performance under a low external magnetic field

Abstract

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