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183 Current news about the topic platinum

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Single atom-thin platinum makes a great chemical sensor

Atomically thin platinum could be useful for ultra-sensitive and fast electrical detection of chemicals

16-Sep-2020

Researchers at Chalmers University of Technology, Sweden, together with colleagues from other universities, have discovered the possibility to prepare one-atom thin platinum for use as a chemical sensor. The results were recently published in the scientific journal Advanced Material ...

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Scientists get atomistic picture of platinum catalyst degradation

Extraction and dissolution of Platinum atoms revealed by X-ray diffraction

26-Aug-2020

Degradation of platinum, used as a key electrode material in the hydrogen economy, severely shortens the lifetime of electrochemical energy conversion devices, such as fuel cells. For the first time, scientists elucidated the movements of the platinum atoms that lead to catalyst surface ...

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Research provides new design principle for water-splitting catalysts

20-Dec-2019

Scientists have long known that platinum is by far the best catalyst for splitting water molecules to produce hydrogen gas. A new study by Brown University researchers shows why platinum works so well -- and it's not the reason that's been assumed. The research, published in ACS Catalysis, helps ...

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Tungsten suboxide improves the efficiency of platinum in hydrogen production

30-Oct-2019

Researchers presented a new strategy for enhancing catalytic activity using tungsten suboxide as a single-atom catalyst (SAC). This strategy, which significantly improves hydrogen evolution reaction (HER) in metal platinum (pt) by 16.3 times, sheds light on the development of new electrochemical ...

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Platinum-graphene fuel cell catalysts show superior stability over bulk platinum

20-Sep-2019

Films of platinum only two atoms thick supported by graphene could enable fuel cell catalysts with unprecedented catalytic activity and longevity, according to a study published recently by researchers at the Georgia Institute of Technology. Platinum is one of the most commonly used catalysts for ...

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Selenium anchors could improve durability of platinum fuel cell catalysts

10-Sep-2019

Platinum has long been used as a catalyst to enable the oxidation reduction reaction at the center of fuel cell technology. But the metal's high cost is one factor that has hindered fuel cells from competing with cheaper ways of powering automobiles and homes. Now researchers at the Georgia ...

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Activity of fuel cell catalysts doubled

Modelling leads to the optimum size for platinum fuel cell catalysts

04-Jul-2019

An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today. Fuel cells may well replace batteries as the power ...

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Applying precious metal catalysts economically

17-May-2019

Precious metal nanoparticles of platinum and gold are excellent catalysts. But they are expensive and rare. This new method makes it possible to save material. Researchers at Ruhr-Universität Bochum and the Fritz Haber Institute Berlin have developed a new method of using rare and expensive ...

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Adapting natural membrane to make hydrogen fuel from water

14-Jan-2019

A chemical reaction pathway central to plant biology have been adapted to form the backbone of a new process that converts water into hydrogen fuel using energy from the sun. In a recent study from the U.S. Department of Energy's (DOE) Argonne National Laboratory, scientists have combined two ...

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Chemical synthesis of nanotubes

Nanometer-sized tubes made from simple benzene molecules

14-Jan-2019

For the first time, researchers used benzene - a common hydrocarbon - to create a novel kind of molecular nanotube, which could lead to new nanocarbon-based semiconductor applications. Researchers from the Department of Chemistry have been hard at work in their recently renovated lab in the ...

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