Why settle for a trial-and-error approach reviewing an almost endless number of combinations when you can systematically narrow down the list to something more manageable using established data and knowledge? A team of researchers from Tohoku University and East China University of Science and Technology showed how to make informed decisions when screening for the ideal catalyst by using experimental data and scientific theories. This screening process can narrow down a staggering number of chemical combinations into several dozen promising catalyst candidates that can then be tested in the lab. Their recent findings show the benefits of this workflow, and how it applied perfectly for a certain Ruthenium-based (Ru) catalyst. The resulting catalyst was highly efficient, and showed promising practical, real-world transferability.
The team first analyzed a large dataset of 718 catalysts that speed up a chemical reaction called acidic oxygen evolution. They then used theoretical models to select a promising dopant - a material that can be added in small amounts to change the properties of the base material - for RuO 2 . Twenty metal dopants were identified, and the most promising candidate was selected using statistical analysis. This closed-loop strategy identified RuO 2 doped with Vanadium (V) as a catalyst that combines high activity with long-term stability in acid.
To determine if the catalyst performed as well as preliminary predictions suggested, they synthesized V-doped RuO 2 and tested it. They found that adding just a bit of Vanadium does two things: promotes deprotonation and stabilizes Ru active sites. Ultimately, results show that V-doping was an effective method to help promote OER kinetics - making the reaction more efficient. Additionally, the doped catalyst was found to outperform commercial RuO 2 by a significant margin.
"The screening method proposed a shortlist of candidates that allowed us to pinpoint a highly promising catalyst that shows both half-cell durability and practical performance," says Hao Li, a Distinguished Professor at the Advanced Institute for Materials Research (WPI-AIMR). "This is exciting because more efficient and durable water electrolyzers can reduce the electricity cost of green hydrogen production, support clean energy storage, renewable energy integration, and future low-carbon chemical industries."
The next step is to extend the data-theory-experiment framework to a wider range of acidic water-oxidation catalysts and realistic proton exchange membrane water electrolysis (PEMWE) operating conditions. The research team also plans to integrate machine learning, operando characterization, and microkinetic modeling to build a more general methodology for discovering durable electrocatalysts under working conditions.
The findings were published in Angewandte Chemie International Edition on June 7, 2026.
About the World Premier International Research Center Initiative (WPI)
The WPI program was launched in 2007 by Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT) to foster globally visible research centers boasting the highest standards and outstanding research environments. Numbering more than a dozen and operating at institutions throughout the country, these centers are given a high degree of autonomy, allowing them to engage in innovative modes of management and research. The program is administered by the Japan Society for the Promotion of Science (JSPS).
See the latest research news from the centers at the WPI News Portal: https://www.eurekalert.org/newsportal/WPI
Main WPI program site: www.jsps.go.jp/english/e-toplevel
Advanced Institute for Materials Research (AIMR)
Tohoku University
Establishing a World-Leading Research Center for Materials Science
AIMR aims to contribute to society through its actions as a world-leading research center for materials science and push the boundaries of research frontiers. To this end, the institute gathers excellent researchers in the fields of physics, chemistry, materials science, engineering, and mathematics and provides a world-class research environment.
AIMR site: https://www.wpi-aimr.tohoku.ac.jp/en/
Angewandte Chemie International Edition
Data- and Theory-Guided Design of Dual-Role V-Doped RuO2 for High-Performance Acidic Oxygen Evolution
7-Jun-2026