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Tens of thousands of feasible catalysts on the diameter of a hair

When searching for catalysts for the energy transition, materials consisting of at least five elements are considered highly promising. But there are theoretically millions of them – how do we ide ...

Alfred-ludwig , Lars-banko , Wolfgang-schuhmann , Interfaces-department , Ruhr-university-bochum , Professor-alfred-ludwig , Materials-discovery , Advanced-materials , Professor-wolfgang-schuhmann , Analytical-chemistry , Ruhr-university , Catalysts

Copper may be the key to turn CO2 into fuel

Germany-based researchers optimized copper catalysts for the conversion of carbon dioxide into chemicals or fuels.

Wolfgang-schuhmann , Yanfang-song ,

Quickly identify high-performance multi-element catalysts

Quickly identify high-performance multi-element catalysts
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Copenhagen , Køavn , Denmark , Alfred-ludwig , Jan-rossmeisl , Wolfgang-schuhmann , Thomas-batchelor , University-of-copenhagen , Professor-wolfgang-schuhmann , Professor-jan-rossmeisl , High-entropy-alloy-catalysis , Professor-alfred-ludwig

Quickly identify high-performance multi-element catalysts

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Research teams from Ruhr-Universität Bochum (RUB) and the University of Copenhagen have therefore developed an approach that can predict the optimal composition and confirm its accuracy with high-throughput experiments. They report in the journal
Angewandte Chemie International Edition of 28. December 2020.
Much less expensive elements than previous catalysts
Many electrochemical reactions go through several steps. Each should be optimized on a catalyst surface if possible, but different requirements apply to each step. "Since previous catalysts usually had only one optimized functionality, one could only make the best compromise possible, and energy losses could not be avoided," explains Professor Wolfgang Schuhmann from the Center for Electrochemistry at RUB. With complex solid solutions, several functionalities can be realized simultaneously on one catalyst surface, overcoming this limitation. However, this only happens when at least five different elements are combined. There are millions of possibilities in which percentage ratios the respective elements can be combined. The previous challenge of searching for a strategy to find optimal properties seems to be answerable with this class of materials. Now the task is to find out which combination fulfills the goal in the best possible way. "Incidentally, this may also be possible with much more favorable elements than with previous catalysts," Schuhmann emphasizes.

Copenhagen , Køavn , Denmark , Alfred-ludwig , Jan-rossmeisl , Wolfgang-schuhmann , Thomas-batchelor , University-of-copenhagen , Angewandte-chemie-international-edition , Professor-wolfgang-schuhmann , Professor-jan-rossmeisl , High-entropy-alloy-catalysis

New energy conversion layer for biosolar cells - Sonnenseite - Ökologische Kommunikation mit Franz Alt

25.12.2020
New energy conversion layer for biosolar cells
Photosynthetic proteins can convert light energy into other forms of energy. Researchers want to make this technology usable for the industrial production of fuels, for example.
A research team from the Ruhr-Universität Bochum (RUB), together with colleagues from Lisbon, has produced a semi-artificial electrode that could convert light energy into other forms of energy in biosolar cells. The technique is based on the photosynthesis protein Photosystem I from cyanobacteria. The group showed that they could couple their system with an enzyme that used the converted light energy to produce hydrogen. The results were published online in advance in October 2020 in the journal Angewandte Chemie.

Bochum , Nordrhein-westfalen , Germany , Lisbon , Lisboa , Portugal , Anna-frank , Marc-nowaczyk , Wolfgang-schuhmann , Felipe-conzuelo , Panpan-wang , Fangyuan-zhao

News - Research in Germany

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22 Dec 2020 | Source: Ruhr Universität, Bochum
Photosynthetic proteins can convert light energy into other forms of energy. Researchers want to make this technology usable for the industrial production of fuels, for example.
A research team from the Ruhr-Universität Bochum (RUB), together with colleagues from Lisbon, has produced a semi-artificial electrode that could convert light energy into other forms of energy in biosolar cells. The technique is based on the photosynthesis protein Photosystem I from cyanobacteria. The group showed that they could couple their system with an enzyme that used the converted light energy to produce hydrogen. The results were published online in advance in October 2020 in the journal Angewandte Chemie.

China , Germany , Bochum , Nordrhein-westfalen , Lisbon , Lisboa , Portugal , German , Anna-frank , Ruhr-universit , Marc-nowaczyk , Wolfgang-schuhmann

New energy conversion layer for biosolar cells

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IMAGE: A bioelectrode with the protein complex Photosystem I under irradiation with red light for measurement of the photocurrent response.
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Credit: Felipe Conzuelo
A research team from the Ruhr-Universität Bochum (RUB), together with colleagues from Lisbon, has produced a semi-artificial electrode that could convert light energy into other forms of energy in biosolar cells. The technique is based on the photosynthesis protein Photosystem I from cyanobacteria. The group showed that they could couple their system with an enzyme that used the converted light energy to produce hydrogen. The results were published online in advance in October 2020 in the journal

Lisbon , Lisboa , Portugal , Anna-frank , Marc-nowaczyk , Wolfgang-schuhmann , Felipe-conzuelo , Panpan-wang , Fangyuan-zhao , Julian-szczesny , Angewandte-chemie ,

Catalytic activity of individual cobalt oxide nanoparticles determined

Catalytic activity of individual cobalt oxide nanoparticles determined
Precious metal-free nanoparticles could serve as powerful catalysts in the future, for example for hydrogen production. To optimize them, researchers must be able to analyze the properties of individual particles. A new method for this has been suggested by a team from the Center for Electrochemistry at Ruhr-Universität Bochum (RUB) and the Institute of Inorganic Chemistry at the University of Duisburg-Essen (UDE). The group developed a method using a robotic arm that allows them to select individual particles under an electron microscope and place them on a nanoelectrode for electrochemical analysis. The method is described in the journal Angewandte Chemie, published online in advance 19 November 2020.

Stephan-schulz , Thomas-quast , Harshitha-barike-aiyappa , Wolfgang-schuhmann , Angewandte-chemie , Patrick-wilde , Ting-chen , University-of-duisburg , Institute-of-inorganic-chemistry , Inorganic-chemistry , Professor-stephan-schulz , Sascha-saddeler