Team develops approach for creating efficient catalysts that produce clean hydrogen gas from water

A research team has developed an efficient, low-cost material designed to produce clean hydrogen gas from water. This research offers news perspectives and valuable insights into the development of efficient, stable, and economical noble metal-free electrocatalysts for green hydrogen production.

Their work was published in the journal Polyoxometalates on March 13, 2026.

The ability to produce green hydrogen, a clean-burning fuel, using water electrolysis holds profound significance in addressing the global energy crisis and alleviating

environmental pollution. By combining electrolysis with renewable energy sources, abundant water resources can be effectively transformed into high-value hydrogen energy. This provides a robust foundation for eco-friendly green development, reducing the dependence on fossil fuels and lessening harmful greenhouse gases.

“We aimed to tackle the low efficiency of hydrogen production from alkaline water electrolysis. The core bottleneck lies in sluggish reaction kinetics at the catalyst surface: breaking water molecules and removing reaction intermediates and hydrogen gas bubbles are inherently difficult processes, and this challenge becomes even more prominent under industrial operating conditions,” said Professor Yichao Huang, China University of Petroleum (East China), School of Materials Science and Engineering.

In water electrolysis, the process of splitting water into hydrogen and oxygen, alkaline water electrolysis holds distinct advantages over acidic water electrolysis. These advantages include lower costs, greater technological maturity, and superior electrode durability. Even thought alkaline water electrolysis offers these benefits, its use in hydrogen production is limited because the hydrogen evolution reaction process is slow.

The sluggish kinetics that slow the process not only reduce overall hydrogen production efficiency but also lead to substantial energy losses, limiting their usefulness for practical applications. Scientists are looking for ways to develop integrated hydrogen evolution reaction electrodes that combine high catalytic activity with long-term stability for use in practical industrial applications.

Scientists have learned that inorganic metal oxides called polyoxometalates (POMs) offer unique advantages in catalyst design. POMs are particularly well suited as precursors for constructing advanced catalysts and nanomaterials. The development of cost-effective electrocatalysts based on earth-abundant elements has become critically important because of the high cost and limited availability of noble-metal, platinum-based materials that are currently being used.

To address these challenges, the research team synthesized a molybdenum and vanadium POM precursor. Using high heat, they created a high-efficiency catalyst. This approach successfully addresses two of the fundamental challenges scientists have faced in developing mixed-material structures. The new approach provides precise control in the bonds where the different material touch and larger, more efficient contact areas.

Atomic-scale interface engineering is a highly effective strategy for unlocking both high activity and stability for practical hydrogen evolution. “By constructing a precisely designed polyoxometalate-derived cluster heterostructure and tuning the interface between molybdenum carbide (Mo₂C) and vanadium trioxide (V₂O₃), we can dramatically accelerate water splitting and H₂ production. With this approach, low-cost non-precious metal catalysts can achieve performance close to — or even superior to — expensive platinum catalysts at high current densities,” said Huang.

The precursor that the team developed demonstrates remarkable catalytic activity and robust high-current stability under alkaline conditions for the hydrogen evolution reaction. Both durable and efficient, it runs for over 400 hours, significantly outperforming conventional catalysts that use expensive platinum. The material demonstrated immense potential for practical and industrial applications.

This study provides new insights into the rational design of high-performance, cost-effective cluster heterostructure catalysts and explains the synergistic roles of catalytic and co-catalytic active sites in regulating interfacial electron transfer and reaction pathways at the atomic level.

Looking ahead, the team will further investigate the interfacial reaction mechanism in real time and apply these insights to design more efficient catalysts with precisely controlled electronic structures. “Our ultimate goal is to develop scalable, industrially applicable electrodes to support large-scale green hydrogen production via water electrolysis. In the future, this material design strategy can also be extended to other energy conversion reactions, including more complex water splitting systems and broader industrial hydrogen production technologies,” said Huang.

The research team includes Lulu Chen from China University of Petroleum (East China) and Shandong Institute of Petroleum and Chemical Technology; Yichao Huang, Haitao Li, Ruili Gao, Han Tang, Jiangwei Chen, Yanfei Wang, and Chuande Wu from China University of Petroleum (East China); and Meihong Liao from Qingdao Binhai University.

The research is funded by the National Natural Science Foundation of China, Taishan Scholar Project of Shandong Province, Natural Science Foundation of Shandong Province, Young Innovative Science and Technology Support Program for Universities of Shandong Province, and Fundamental Research Funds for the Central Universities.

DOI Link:

https://doi.org/10.26599/POM.2026.9140110

About Polyoxometalates

Polyoxometalates (ISSN 2957-9821) is a peer-reviewed (single-blind), open-access and interdisciplinary journal, sponsored by Tsinghua University. Polyoxometalates publishes original high-quality research papers and significant review articles that focus on cutting-edge advancements in Polyoxometalates, and clusters of metals, metal oxides and chalcogenides. Rapid review to ensure quick publication is a key feature of Polyoxometalates. The journal is indexed by ESCI (IF 2025 = 10.4, Top 3), Scopus (CiteScore 2025 = 17.6, Top 3), Ei Compendex, CAS, and DOAJ. For details about Polyoxometalates, please visit: https://www.sciopen.com/journal/2957-9821.

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