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17. February 2022

Innovative catalysts to produce green hydrogen

Experts from CatLab at HZB and TU Berlin present an overview on current knowledge and outlook for future research

Illustration green hydrogen © Dr. Ziliang Chen
With the help of innovative elctrocatalytic materials, water can be split up into oxygen and hydrogen. Hydrogen is a fuel storing chemical energy as long as needed. © Dr. Ziliang Chen

Highly efficient (electro-)catalysts are essential for the production of green hydrogen, the chemical industry, fertiliser production and other sectors of the economy. In addition to transition metals, a variety of other metallic or non-metallic elements have now moved into the focus of research. In a review article, experts from CatLab and Technische Universität Berlin present an overview on current knowledge and a perspective on future research questions.

Green hydrogen is an important component in a climate-neutral energy system. It is produced by electrolytically splitting water with wind or solar power and stores this energy in chemical form. But currently, the production of green hydrogen is not yet economical or efficient enough. The key to solving this problem is through the development of innovative electrocatalysts, which should not only work with high efficiencies but should also be available and inexpensive.

In addition to transition metals, which are already well studied for their catalytic properties, a wider choice of elements has now moved into the focus such as alkali metals, alkaline earth metals, rare earth metals, lean metals and metalloids. Some of these when combined with transition metal electrocatalysts can significantly improve performance and contribute to the development of next-generation high-performance electrocatalysts.

However, many of the processes that take place during electrocatalysis – when oxygen or hydrogen is formed – are still not understood in detail. In a review article, an international team of experts guides us through this exciting research field and draws a perspective, sketching the next steps catalyst research could take. “This contribution summarises the current state of knowledge on such unconventional s-, p-, and f-block metal-based materials and makes it comprehensible to a wider community of scientists,” Dr. Prashanth W. Menezes points out and adds: “Further, the essential role of such metals during water splitting electrocatalysis is described in great depth, as well as the modification strategy that should be considered when one wants to utilize them to mediate non-noble-based electrocatalysts. We hope to significantly accelerate research and development of novel, innovative catalyst materials with this review article.” Dr. Prashanth W. Menezes is Head of Materials Chemistry for Thin-Film Catalysis Group in the CatLab-Project at HZB and Head of Inorganic Materials Group at TU Berlin.

Together with the Fritz Haber Institute of the Max Planck Society, HZB is setting up the Catalysis Laboratory CatLab, which is intended to accelerate research into innovative catalysts. CatLab is supported by the German Federal Ministry of Education and Research.

Publication:

Advanced Materials, Review Article: The Pivotal Role of s-, d-, and f-Block Metals in Water Electrolysis: Status Quo and Perspectives
Ziliang Chen, Hongyuan Yang, Zhenhui Kang, Matthias Driess, and Prashanth W. Menezes
DOI: 10.1002/adma.202108432
 

Contact:

Helmholtz-Zentrum Berlin
Energy and Information Staff Division
Email: GF-EI-office(at)helmholtz-berlin.de

Press Officer:
Dr. Antonia Rötger
Phone: +49 30 8062-43733
Email: antonia.roetger(at)helmholtz-berlin.de

www.helmholtz-berlin.de/projects/catlab/

 

Press release HZB, 15 February 2022

Research Renewable Energies Grand Challenges Microsystems / Materials

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The development of the Science and Technology Park Berlin Adlershof was and is co-financed by the European Union namely by EFRE. This concerns infrastructure development like construction of technology centres. Furthermore EFRE is used for international projects.

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