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							Issue
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											E3S Web Conf.
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<div><strong>Volume </strong>666, 2025				</div>
				
					                5<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> International Conference on Air Pollution and Environmental Engineering (APEE 2025)
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					Article Number
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<td>01008</td>
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					Number of page(s)
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<td>4</td>
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<th>DOI</th>
<td></td>
<td>
<a href="https://doi.org/10.1051/e3sconf/202566601008">
					https://doi.org/10.1051/e3sconf/202566601008
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<th>Published online</th>
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				19 November 2025
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## NiCo2S4@Ce2S3/CC Catalyst for Urea Electrocatalytic Oxidation

Heping Shi*, Shuai Geng and Bo Hai

College of science, Inner Mongolia Agricultural University, Hohhot, China

* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Electrolytic hydrogen production from water offers high-purity hydrogen and supports environmentally friendly development. We prepared NiCo2S4@Ce2S3/CC catalyst on carbon cloth (CC) substrate using a two-step hydrothermal method. The needle like structure aggregates into large porous cavities, significantly increasing the active surface area and catalytic sites. To achieve 50 mA · cm-2, an overpotential of 0.99 V is required, and the Tafel slope is 106.39 mV · dec -1, demonstrating excellent catalytic activity. The introduction of rare earth element Ce during the catalyst synthesis process provides a feasible strategy for synthesizing high-performance UOR catalysts.

Key words: Transition metal nickel / Urea oxidation reaction / Rare-earth cerium / Nickel-cobalt-based catalysts / Electrocatalysis

© The Authors, published by EDP Sciences, 2025

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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