Issue 10, 2024

In situ growth of NiSe2 nanoparticles on g-C3N4 nanosheets for an efficient hydrogen evolution reaction

Abstract

A safe, non-precious, and low-cost catalyst, having a high hydrogen evolution rate, is one of the key demands for a sustainable hydrogen economy. In this study, we used a low-cost hydrothermal technique to prepare a NiSe2 nanoparticle-based catalyst. These particles were grown on 2D g-C3N4 nanosheets to improve their physical and chemical properties. The synthesized NiSe2/g-C3N4 nanocomposite catalyst demonstrated a high HER performance when compared to bare NiSe2 and g-C3N4. Specifically, the NiSe2/g-C3N4 composite demonstrated a lower Tafel slope of 64 mV dec−1, a stable HER up to 1000 min, and a low overpotential of 87 mV at a current density of 10 mA cm−2. The superior HER performance of the composite on 2D g-C3N4 corresponds to high active sites, and the synergistic interfacial contact leads to enhanced conductivity for rapid charge transport and long chemical stability. Thus, our study offers a pathway for the synthesis and development of non-precious, non-toxic, and highly stable electrocatalysts to replace noble metal-based catalysts and reduce the production costs of H2 gas.

Graphical abstract: In situ growth of NiSe2 nanoparticles on g-C3N4 nanosheets for an efficient hydrogen evolution reaction

Supplementary files

Article information

Article type
Paper
Submitted
01 noy 2023
Accepted
25 mar 2024
First published
28 mar 2024
This article is Open Access
Creative Commons BY license

Mater. Adv., 2024,5, 4345-4353

In situ growth of NiSe2 nanoparticles on g-C3N4 nanosheets for an efficient hydrogen evolution reaction

S. R. Khaladkar, O. Maurya, G. Gund, B. Sinha, G. Kamble, J. H. Kim, R. R. Deshmukh and A. Kalekar, Mater. Adv., 2024, 5, 4345 DOI: 10.1039/D3MA00948C

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