Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Quicker method paves the way for atomic-level design

Abstract:
A new X-ray method will enable the development of more efficient catalysts. The method opens up new opportunities to work on atomic level in a number of areas of materials science. Researchers from Lund University are among those behind the new method.

Quicker method paves the way for atomic-level design

Lund, Sweden | Posted on February 1st, 2014

The new X-ray method is used to determine the atomic structure of the surface of different materials.
The goal of the present research is to understand how catalysts work at atomic level - both the catalytic converters used for vehicle emissions control in cars and catalysts used in industry.

"Today, almost all developments in catalysts take place through a method of trial and error, but in order to be able to develop better catalysts in the future, deeper understanding of the atomic level is needed", says Dr Johan Gustafson, a researcher at the Department of Physics at Lund University.

A catalyst works by capturing the molecules that are to react on a catalytic surface. The effect of the surface on the molecules is to speed up the desired reaction. The surfaces of different materials capture and affect molecules in different ways. The new X-ray method offers researchers a significantly improved insight into what happens on these surfaces and in their active sites, i.e. the places where the molecules attach and react.

With this knowledge, the material in the catalyst can be optimised to speed up desired reactions and slow down others. The new X-ray method not only provides an instant picture of the situation on a surface, but can also be used to monitor changes over the time that the surface is subjected to different treatments.

"This could be a catalytic reaction that happens on the surface, as in our case. But it would also be possible to monitor how nanostructures grow or how metals oxidise, in conjunction with corrosion, as protection against corrosion or to change the properties of the surface in another way", says Johan Gustafson.

The researchers have developed the new X-ray method by using X-rays of around five times higher energy than usual. This means that a larger amount of data can be measured simultaneously, which in turn drastically reduces the time taken to conduct a full surface structure determination, from ten hours with the traditional method to roughly ten minutes with the new method.

The journal Science now reports on the new X-ray method, which Johan Gustafson has developed with colleagues from Lund University, Chalmers University of Technology in Gothenburg, the DESY research centre in Germany and Hamburg University.

####

About Lund University
Our university has all the advantages of a wide academic range and highly-qualified staff. We offer a rich and diverse academic environment with creative links between students and teachers, international cutting-edge researchers and between university and community.

Lund University is Scandinavia's largest institution for education and research. We are active in Lund, Malmoe and Helsingborg, and have a comprehensive global network of contacts and growing co-operation within the oeresund University.

For more information, please click here

Contacts:
Lotte Billing


Dr Johan Gustafson
Associate Senior Lecturer in Synchrotron Radiation Physics
Department of Physics, Lund University
Tel. +46 46 222 38 70

Copyright © AlphaGalileo

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Full bibliographic information

Related News Press

Imaging

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

International research partnership tricks the light fantastic March 2nd, 2015

News and information

International research partnership tricks the light fantastic March 2nd, 2015

UC research partnership explores how to best harness solar power March 2nd, 2015

Researchers turn unzipped nanotubes into possible alternative for platinum: Aerogel catalyst shows promise for fuel cells March 2nd, 2015

Chemistry

Chromium-Centered Cycloparaphenylene Rings as New Tools for Making Functionalized Nanocarbons February 24th, 2015

Stretch and relax! -- Losing 1 electron switches magnetism on in dichromium February 23rd, 2015

A straightforward, rapid and continuous method to protect MOF nanocrystals against water February 9th, 2015

Research shows benefits of silicon carbide for sensors in harsh environments: Advantages identified across industries February 9th, 2015

Molecular Nanotechnology

Monitoring the real-time deformation of carbon nanocoils under axial loading February 18th, 2015

Nanotechnology: Better measurements of single molecule circuits February 18th, 2015

Half spheres for molecular circuits: Corannulene shows promising electronic properties February 17th, 2015

Tiny robotic 'hands' could improve cancer diagnostics, drug delivery February 4th, 2015

Discoveries

Colon + septic tank = unique, at times stinky, study: Researchers use lab-scale human colon and septic tank to study impact of copper nanoparticles on the environment March 2nd, 2015

New nanodevice defeats drug resistance: Tiny particles embedded in gel can turn off drug-resistance genes, then release cancer drugs March 2nd, 2015

Breakthrough in OLED technology March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

Announcements

International research partnership tricks the light fantastic March 2nd, 2015

UC research partnership explores how to best harness solar power March 2nd, 2015

Researchers turn unzipped nanotubes into possible alternative for platinum: Aerogel catalyst shows promise for fuel cells March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

Tools

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

International research partnership tricks the light fantastic March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

Mass spectrometers with optimised hydrogen pumping March 1st, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE