Nanotechnology Now |
Home > Press > New energy research under the microscope
 |
| Curtis Brown, Thomas LaGrange and Judy Kim make adjustments to the dynamic transmission electron microscope. |
Abstract:
Scientists can now peer into the inner workings of catalyst nanoparticles 3,000 times smaller than a human hair within nanoseconds.
New energy research under the microscope
Livermore, CA | Posted on July 7th, 2010The findings point the way toward future work that could greatly improve catalyst efficiency in a variety of processes that are crucial to the world's energy security, such as petroleum catalysis and catalyst-based nanomaterial growth for next-generation rechargeable batteries.
Using a new imaging technique on the Dynamic Transmission Electron Microscope (DTEM), at DOE's Lawrence Livermore's National Laboratory, researchers have achieved unprecedented spatial and temporal resolution in single-shot images of nanoparticulate catalysts.
The DTEM uses a laser-driven photocathode to produce short pulses of electrons capable of recording electron micrographs with 15-nanosecond (one billionth of a second) exposure time. The recent addition of an annular dark field (ADF) aperture to the instrument has greatly improved the ability to time-resolve images of nanoparticles as small as 30 nanometers in diameter.
"Nanoparticles in this size range are of crucial importance to a wide variety of catalytic processes of keen interest to energy and nanotechnology researchers," said UC Davis' Dan Masiel, formerly of LLNL and lead author of a paper appearing in the journal, ChemPhysChem. "Time-resolved imaging of such materials will allow for unprecedented insight into the dynamics of their behavior."
Previously, particles smaller than 50 nanometers could not be resolved in the 15-nanosecond exposure because of the limited signal and low contrast without ADF aperature. But by using DTEM's ADF, almost every 50-nanometer particle and many 30-nanometer ones became clearly visible because of the fast time resolution and improved contrast.
####
For more information, please click here
Contacts:
Anne Stark
925.422.9799
Copyright © Lawrence Livermore National Laboratory
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:
| Related News Press |
News and information
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013
Chemistry
Iranian Scientists Use Pomegranate Juice to Produce Copper Iodide Nanostructure May 14th, 2013
Chemistry breakthrough sheds new light on illness and health May 12th, 2013
Researchers develop unique method for creating uniform nanoparticles May 6th, 2013
Four groups at the UJI set up a multidisciplinary cooperative research consortium to advance in medicine, energy and catalysis May 1st, 2013
Possible Futures
UC Santa Barbara History Professor's Book Elucidates, Celebrates ‘Visioneers' May 14th, 2013
Conceptual Nanomedical Lipofuscin Removal Strategy April 29th, 2013
The Global Desalination Market 2013-2023 April 24th, 2013
Announcements
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Tools
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Energy
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
Solar panels as inexpensive as paint? It’s possible due to research at UB, elsewhere May 13th, 2013
Battery Technology/Capacitors/Generators/Piezoelectrics
Add boron for better batteries: Rice University theorists say graphene-boron mix shows promise for lithium-ion batteries May 17th, 2013
New Mechanism Converts Natural Gas to Energy Faster, Captures CO2 May 7th, 2013
Microwave oven cooks up solar cell material: Nanocrystal semiconductor for photovoltaics, medical sensors, heat reuse May 6th, 2013
Improving materials that convert heat to electricity and vice-versa May 5th, 2013
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
University Technology Transfer & Patents
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||
abbigliamento uomo
Computer Accessories
| © Copyright 1999-2013 7th Wave, Inc. All Rights Reserved | PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE |