78 Current news about the topic catalysts

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Chemical hotspots

Scanning tunneling microscopy measurements identify active sites on catalysts

11-Sep-2017

Chemistry live: Using a scanning tunneling microscope, researchers at the Technical University of Munich (TUM) were able for the very first time to witness in detail the activity of catalysts during an electro-chemical reaction. The measurements show how the surface structure of the catalysts ...

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Watching 'artificial atoms' assemble into perfect lattices

Scientists see numerous uses

02-Aug-2017

Some of the world's tiniest crystals are known as "artificial atoms" because they can organize themselves into structures that look like molecules, including "superlattices" that are potential building blocks for novel materials. Now scientists from the Department of Energy's SLAC National ...

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Seeing more with PET scans

New chemistry for medical imaging

28-Jul-2017

Researchers have found a surprisingly versatile workaround to create chemical compounds that could prove useful for medical imaging and drug development. The chemical mechanism, discovered by scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and UC ...

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Spotting the invisible

Mapping structures and functions of a transient enzyme state

02-Jun-2017

Chemists at Umeå University have succeeded in mapping structures and functions of a transient enzyme state. By modifying the enzyme adenylate kinase, researchers were able to isolate the molecule and study it using the quantitative techniques X-ray crystallography and nuclear magnetic resonance ...

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Strange forces acting on nanoparticles discovered

12-Apr-2017

A new scientific paper published, in part, by a University of New Mexico physicist is shedding light on a strange force impacting particles at the smallest level of the material world. The discovery was made by an international team of researchers lead by UNM Assistant Professor Alejandro ...

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Researchers Watch Catalysts at Work

18-Aug-2016

Physicists at the University of Basel have succeeded in watching a silver catalyst at work for the first time with the aid of an atomic force microscope. The observations made during an Ullmann reaction have allowed the researchers to calculate the energy turnover and, potentially, to optimize ...

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Microscopy captures real-time view of evolving fuel cell catalysts

23-Nov-2015

Atomic-level imaging of catalysts by scientists at the Department of Energy's Oak Ridge National Laboratory could help manufacturers lower the cost and improve the performance of emission-free fuel cell technologies. Fuel cells rely on costly platinum catalysts to enable the reactions that ...

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'Invisible' protein structure explains the power of enzymes

07-Jul-2015

A research group at Umeå University in Sweden has managed to capture and describe a protein structure that, until now, has been impossible to study. The discovery lays the base for developing designed enzymes as catalysts to new chemical reactions for instance in biotechnological applications. ...

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X-rays and electrons join forces to map catalytic reactions in real-time

01-Jul-2015

A new technique pioneered at the U.S. Department of Energy's Brookhaven National Laboratory reveals atomic-scale changes during catalytic reactions in real time and under real operating conditions. A team of scientists used a newly developed reaction chamber to combine x-ray absorption ...

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Scientists get first glimpse of a chemical bond being born

A fundamental advance has big implications for making chemistry more efficient

16-Feb-2015

Scientists have used an X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory to get the first glimpse of the transition state where two atoms begin to form a weak bond on the way to becoming a molecule. This fundamental advance, reported Feb. 12 in Science Express and ...

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