Featured Research

from universities, journals, and other organizations

'Operando' Methods For Understanding Catalysis In Hydrogen Storage

Date:
September 12, 2005
Source:
Pacific Northwest National Laboratory
Summary:
As researchers at Pacific Northwest National Laboratory investigated the hydrogen storage capabilities of amine borane compounds, they knew that a rhodium catalyst readily releases hydrogen from the compound at room temperature. But they weren't sure how it worked. Aside from the scientific quest for knowledge, understanding the mechanism at work with rhodium may help with the development of a more cost-effective catalyst to enable hydrogen storage.

As researchers at Pacific Northwest National Laboratory investigatedthe hydrogen storage capabilities of amineborane compounds, they knew that a rhodium catalyst readily releaseshydrogen from the compound at roomtemperature. But they weren't sure how it worked. Aside from thescientific quest for knowledge, understanding the mechanism at workwith rhodium may help with the development of a more cost-effectivecatalyst to enablehydrogen storage.

Related Articles


PNNL scientists used a type of x-ray spectroscopy available at theAdvanced Photon Source synchrotron at ArgonneNational Laboratory to look at the reaction as it was occurring. Theyfound the active site of the catalystcentered around a cluster of about four rhodium atoms. They also foundthat the catalyst structure during thereaction was different than the structure before and after thereaction, thus highlighting the importance of measuring the catalyststructure during the reaction conditions.

By combining these results with subsequent in situ nuclear magnetic resonance and infrared spectroscopy,researchers were able to "see" what happens to the boron compound as the hydrogen is released. The resultsshow the mechanism of how the amine borane compound binds to the active catalyst and then how the hydrogenmolecule is released as a gas.

The research demonstrates the importance of "operando" methods -or observation of the fundamental molecular level measurements of thecatalyst, the reactants and the products - under practical conditions.The PNNLgroup is using this approach to investigate other chemical reactionswhere little is known about the key catalytic processes.

###

Pacific Northwest National Laboratory researcher Tom Autrey will present his results at 1:30 p.m., Monday, Aug. 29.


Story Source:

The above story is based on materials provided by Pacific Northwest National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

Pacific Northwest National Laboratory. "'Operando' Methods For Understanding Catalysis In Hydrogen Storage." ScienceDaily. ScienceDaily, 12 September 2005. <www.sciencedaily.com/releases/2005/09/050911111434.htm>.
Pacific Northwest National Laboratory. (2005, September 12). 'Operando' Methods For Understanding Catalysis In Hydrogen Storage. ScienceDaily. Retrieved April 25, 2015 from www.sciencedaily.com/releases/2005/09/050911111434.htm
Pacific Northwest National Laboratory. "'Operando' Methods For Understanding Catalysis In Hydrogen Storage." ScienceDaily. www.sciencedaily.com/releases/2005/09/050911111434.htm (accessed April 25, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, April 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

MINI Shows Off Augmented Reality Glasses

MINI Shows Off Augmented Reality Glasses

AP (Apr. 24, 2015) — MINI showcased its new augmented reality glasses at the Shanghai Auto Show this week, which designers say will make roads safer and allow the driver to see through opaque parts of the car. (April 24) Video provided by AP
Powered by NewsLook.com
3D Food Printing: The Meal of the Future?

3D Food Printing: The Meal of the Future?

AP (Apr. 23, 2015) — Developers of 3D food printing hope the culinary technology will revolutionize the way we cook and eat. (April 23) Video provided by AP
Powered by NewsLook.com
'Safest Bike Ever' Devised by British Entrepreneur

'Safest Bike Ever' Devised by British Entrepreneur

Reuters - Innovations Video Online (Apr. 23, 2015) — A British inventor says his Babel bike is the safest bicycle ever produced. Crispin Sinclair - son of famous British inventor Sir Clive Sinclair - hopes the bike&apos;s safety cage, double seatbelt, and host of other measures will inspire non-cyclists to get in the saddle. Jim Drury went to see it in action. Video provided by Reuters
Powered by NewsLook.com
First Successful Aerial Refueling of a Drone

First Successful Aerial Refueling of a Drone

Reuters - Innovations Video Online (Apr. 23, 2015) — The bat-wing U.S. Navy drone that became the first autonomous airplane to take off and land on an aircraft carrier accomplished yet another milestone on Wednesday, becoming the first unmanned aircraft to undergo aerial refueling. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins