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Water Electrolysis

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 411

Special Issue Editor


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Guest Editor
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Interests: controllable synthesis and electrocatalytic activity regulation of nanomaterials

Special Issue Information

Dear Colleagues,

Hydrogen energy is a clean and carbon-free energy source that plays an important role in renewable energy. Its advantages include a high energy density, high calorific value, and low molecular weight. Hydrogen energy is considered to be the most promising and ideal energy source to replace traditional fuels, as it can meet the requirements of energy development for ecological environment protection and achieve low-cost and sustainable energy. As is well known, the electrolysis of water is a sustainable method for hydrogen production which includes (1) proton exchange membrane water electrolyser, (2) alkaline water electrolyser, and (3) solid oxide electrolysis cells.

If you would like to submit a paper for publication in this Special Issue or if you have any questions, please contact the in-house editor, Vincy Zhou (vincy.zhou@mdpi.com).

Dr. Linjing Yang
Guest Editor

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Keywords

  • electrocatalysts
  • hydrogen production
  • water splitting

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Published Papers (1 paper)

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Research

13 pages, 5005 KiB  
Article
Formicarium-Inspired Hierarchical Conductive Architecture for CoSe2@MoSe2 Catalysts Towards Advanced Anion Exchange Membrane Electrolyzers
by Zhongmin Wan, Zhongkai Huang, Changjie Ou, Lihua Wang, Xiangzhong Kong, Zizhang Zhan, Tian Tian, Haolin Tang, Shu Xie and Yongguang Luo
Molecules 2025, 30(10), 2087; https://doi.org/10.3390/molecules30102087 - 8 May 2025
Viewed by 213
Abstract
The exploration of high-performance, low-cost, and dual-function electrodes is crucial for anion exchange membrane water electrolysis (AEMWE) to meet the relentless demand for green H2 production. In this study, a heteroatom-doped carbon-cage-supported CoSe2@MoSe2@NC catalyst with a formicarium structure [...] Read more.
The exploration of high-performance, low-cost, and dual-function electrodes is crucial for anion exchange membrane water electrolysis (AEMWE) to meet the relentless demand for green H2 production. In this study, a heteroatom-doped carbon-cage-supported CoSe2@MoSe2@NC catalyst with a formicarium structure has been fabricated using a scalable one-step selenization strategy. The component-refined bifunctional catalyst exhibited minimal overpotential values of 116 mV and 283 mV at 10 mA cm−2 in 1 M KOH for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), respectively. Specifically, rationally designed heterostructures and flexible carbonaceous sponges facilitate interfacial reaction equalization, modulate local electronic distributions, and establish efficient electron transport pathways, thereby enhancing catalytic activity and durability. Furthermore, the assembled AEMWE based on the CoSe2@MoSe2@NC bifunctional catalysts can achieve a current density of 106 mA cm−2 at 1.9 V and maintain a favorable durability after running for 100 h (a retention of 95%). This work highlights a new insight into the development of advanced bifunctional catalysts with enhanced activity and durability for AEMWE. Full article
(This article belongs to the Special Issue Water Electrolysis)
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