Concept for efficiency-enhanced noble-metal catalysts

New approach for the production of resource-saving and durable catalysts benefits from varying interactions between noble metals and different carrier materials

09-Aug-2024 - Noble-metal catalysts are used in many processes in the chemical industry. A reduction of the amount of noble metal required for their production is an important contribution to a sustainable resource use. “Our approach will significantly improve the catalyst stability and ensure the formation of ...

Concept for more efficient precious metal catalysts

New approach for the production of resource-saving catalysts uses different interactions of precious metals with different carrier materials

26-Jul-2024 - More than 90 percent of all chemical products in our everyday lives use a catalyst in the course of their production. Catalysts make chemical reactions faster, can reduce their energy consumption and make some reactions possible in the first place. Researchers at the Karlsruhe Institute of ...

Chemistry by type of stew

Can it be so easy to combine very different substances in a "one-pot synthesis" to create a new class of materials?

05-Jul-2024 - Chemists at the University of Konstanz describe how they have made a very unusual reaction possible. An old dream of mankind is to combine the best of two worlds: to bring together the advantages of two opposing things without having to accept their disadvantages. This old dream is also being ...

From waste to value: The right electrolytes can enhance glycerol oxidation

"Our research could help to convert biomass by-products into valuable chemicals more efficiently"

03-Jul-2024 - When biomass is converted into biodiesel, huge amounts of glycerol are produced as a by-product. So far, however, this by-product has been little utilised, even though it could be processed into more valuable chemicals through oxidation in photoelectrochemical reactors. The reason for this: low ...

Green steel from toxic red mud

An economical process with green hydrogen can be used to extract CO2-free iron from the red mud generated in aluminium production

01-Feb-2024 - The production of aluminium generates around 180 million tonnes of toxic red mud every year. Scientists at the Max-Planck-Institut für Eisenforschung, a centre for iron research, have now shown how green steel can be produced from aluminium production waste in a relatively simple way. In an ...

A “gold standard” for computational materials science codes

23-Jan-2024 - Physicists and materials scientists can choose from a whole family of computer codes that simulate the behavior of materials and predict their properties. The accuracy of the results obtained by these codes depends on the employed approximations and chosen numerical parameters. To verify that the ...

Green hydrogen: Improving the stability of iridium catalysts with titanium oxides

High relevance for practical use

18-Dec-2023 - Anodes for the electrolytic splitting of water are usually iridium-based materials. In order to increase the stability of the iridium catalyst, a team at HZB and a group at HI-ERN have now produced a so-called material library: a sample in which the concentration of iridium and titanium oxides is ...

Fast and energy-saving synthesis method for new electrocatalysts

Water electrolysis and the associated hydrogen production could become more energy-efficient in the future

15-Dec-2023 - Researchers from the Bavarian Centre for Battery Technology and the "SolTech" research network at the University of Bayreuth have presented a new production method for electrocatalysts: a fast, low-temperature synthesis of special ceramic materials (high-entropy oxides). The results from the ...

Surface analysis of catalyst particles in aqueous solutions

The results are relevant for the development of efficient photoelectrodes for the production of green hydrogen

25-Jul-2023 - Green hydrogen can be produced directly in a photoelectrochemical cell, splitting water with solar energy. However, this requires the development of super-efficient photoelectrodes that need to combine many talents at the same time: They must be excellent at converting sunlight into electricity, ...

Terahertz light from superconducting stripes

Scientists discover anomalous emission of terahertz radiation from copper oxides in which superconductivity coexists with charge-stripe order

27-Sep-2022 - Why do some materials carry electrical currents without any resistance only when cooled to near absolute zero while others do so at comparatively high temperatures? This key question continues to vex scientists studying the phenomenon of superconductivity. Now a team of researchers from Andrea ...