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Home NEWS Science News Chemistry

Addressing global energy needs with ideal electrocatalysts 

Bioengineer by Bioengineer
March 26, 2024
in Chemistry
Reading Time: 2 mins read
0
Vladislav Ivaništšev, Nadezda Kongi, Ritums Cepitis
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Researchers from the University of Tartu and the University of Copenhagen have proposed the theoretical description of an ideal electrocatalysis process, which, if implemented, could double the efficiency of energy conversion and storage devices.  

Vladislav Ivaništšev, Nadezda Kongi, Ritums Cepitis

Credit: Vladislav Ivaništšev, Nadezda Kongi, Ritums Cepitis. Photo courtesy of Jaak Kikas.

Researchers from the University of Tartu and the University of Copenhagen have proposed the theoretical description of an ideal electrocatalysis process, which, if implemented, could double the efficiency of energy conversion and storage devices.  

As the world seeks sustainable solutions to meet escalating energy demands, a collaborative team of researchers from the Universities of Tartu and Copenhagen has proposed an innovative approach to overcome long-standing limitations in oxygen electrocatalysis. Oxygen electrocatalysis involves reactions, such as oxygen evolution and reduction reaction, which are crucial in various electrochemical energy conversion and storage systems like water splitting, fuel cells, and metal-air batteries. These reactions involve breaking and forming multiple chemical bonds, which typically have high activation energies. This makes it difficult to find catalysts that can effectively lower these energy barriers and facilitate the reactions. To overcome these limitations and accelerate the transition to a hydrogen economy, novel paradigm for catalyst design is required. Despite theoretical constraints, the research team has discovered a practical method to surpass the limitations.  

In a recent article published in ACS Catalysis Science and Technology, the research team introduces an innovative concept of geometry-adaptive electrocatalysis. This approach utilises catalysts that dynamically adjust their geometry during a reaction, bypassing the theoretical limitations that have hindered progress in oxygen electrocatalysis for decades.  

“This concept has the potential to revolutionise the field of oxygen electrocatalysis,” says Ritums Cepitis, the principal author of the study, a 4th year PhD student at KongiLab at the Institute of Chemistry. “Our model demonstrates that ideal catalysis is within reach, and in practical terms, it could potentially double the efficiency of energy conversion and storage technologies,” adds Dr- V. Ivaništšev, who developed the idea with Prof. J. Rossmeisl during a fellowship at the University of Copenhagen.   

“Now, our group is ready to put this approach into action. The laboratory work will demand even greater creativity than the modelling phase, but we already see promising advancements,” says Associate Professor Nadežda Kongi, the leader of the Inorganic Functional Materials research group (KongiLab) at the University of Tartu.   

The full article was published in Catalysis Science & Technology: https://doi.org/10.1039/D4CY00036F. 

Additional information: Nadežda Kongi, [email protected] , www.kongilab.com  



Journal

Catalysis Science & Technology

DOI

10.1039/D4CY00036F.

Method of Research

Computational simulation/modeling

Subject of Research

Not applicable

Article Title

Bypassing the scaling relations in oxygen electrocatalysis with geometry-adaptive catalysts

Article Publication Date

8-Mar-2024

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