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Boosted photocatalysis for hydrogen evolution: Reactant supply thru phosphonate groups

 E-Mail IMAGE: Schematic illustration of the alkylsilane phosphonate modification of a Ru/La,Rh:STO photocatalyst to accelerate the reactant supply. view more  Credit: Copyright © 2020 Yosuke Kageshima, Shinshu University Water splitting research for solar hydrogen production has focused on physical processes inside the semiconductor, such as light absorption, charge separation, and chemical processes on the surface that are highly complex and rely on the development of new materials. However, processes inside the solution had yet to be thoroughly explored. One recent approach to improve photocatalytic hydrogen production was proposed by loading phosphonate groups on the surface of the visible-light-responsive photocatalyst lanthanum and rhodium-doped strontium titanate (La,Rh:STO) with a silane coupling agent. The phosphonate functional group functions as a mediator of proton supply (i.e., promotes the supply of reactants) and improves hydrogen production activity.

Having sustainability in mind: lithium from the Upper Rhine Graben for batteries

Credit: (Photo: EnBW/Uli Deck) Worldwide demand for lithium is increasing. The raw material is much sought-after in particular for e-mobility. To meet this increasing demand, production of lithium by deep geothermal energy plants has been discussed for some years now. Some pilot projects are being carried out at the moment, among others in the Upper Rhine valley. The Federal Ministry for Economic Affairs and Energy has now decided to fund the UnLimited project for the setup of a pilot facility at the geothermal power plant in Bruchsal by EnBW Energie Baden-Württemberg AG as consortium leader in cooperation with Karlsruhe Institute of Technology (KIT), BESTEC, HYDROSION, and the University of Göttingen.

Producing green hydrogen through the exposure of nanomaterials to sunlight

 E-Mail IMAGE: View through a window of the interior of an ultra-high vacuum reactor where TiO2 nanotubes are decorated with CoO nanoparticles. We see the flame (plasma produced by laser ablation) that. view more  Credit: Christian Fleury (INRS) A research team from the Institut national de la recherche scientifique (INRS) has joined forces with French researchers from the Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), a CNRS-University of Strasbourg joint research lab, to pave the way towards the production of green hydrogen. This international team has developed new sunlight-photosensitive-nanostructured electrodes. The results of their research were published in the November 2020 issue of the journal of

Teamwork in a molecule

 E-Mail IMAGE: Dr. Helmar Görls studies single crystals of novel compounds using a X-ray diffractometer at the Institute of Inorganic and Analytical Chemistry at Friedrich Schiller University in Jena, Germany.. view more  Credit: Jens Meyer/University of Jena Such reactions are usually carried out using transition metals, such as nickel or iridium, explains Prof. Robert Kretschmer, Junior Professor of Inorganic Chemistry at the University of Jena, whose work has been published in the prestigious Journal of the American Chemical Society. However, transition metals are expensive and harmful to the environment, both when they are mined and when they are used. Therefore, we are trying to find better alternatives. That two metals can do more than one is already known in the case of transition metals. However, there has been hardly any research on the more sustainable main-group metals of the periodic table, Kretschmer adds.

New sodium oxide paves the way for advanced sodium-ion batteries

 E-Mail Skoltech researchers and their collaborators from France, the US, Switzerland, and Australia were able to create and describe a mixed oxide Na(Li1/3Mn2/3)O2 that holds promise as a cathode material for sodium-ion batteries, which can take one day complement or even replace lithium-ion batteries. The paper was published in the journal Nature Materials. Lithium-ion batteries are powering the modern world of consumer devices and driving a revolution in electric transportation. But since lithium is rather rare and challenging to extract from an environmental standpoint, researchers and engineers have been looking for more sustainable and cost-effective alternatives for quite some time now.

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