Innovative catalysts

Date:
February 16, 2022
Source:
Helmholtz-Zentrum Berlin fu"r Materialien und Energie
Summary:
Highly efficient (electro-)catalysts are essential for the
production of green hydrogen, the chemical industry, fertilizer
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.



FULL STORY ========================================================================== 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." Note: 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.

========================================================================== Story Source: Materials provided by Helmholtz-Zentrum_Berlin_fu"r_Materialien_und_Energie.

Note: Content may be edited for style and length.


========================================================================== Journal Reference:
1. Ziliang Chen, Hongyuan Yang, Zhenhui Kang, Matthias Driess,
Prashanth W.

Menezes. The Pivotal Role of s‐, p‐, and f‐Block
Metals in Water Electrolysis: Status Quo and Perspectives. Advanced
Materials, 2022; 2108432 DOI: 10.1002/adma.202108432 ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2022/02/220216095832.htm

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