Featured Research

from universities, journals, and other organizations

Promising Step Towards More Effective Hydrogen Storage

Date:
June 18, 2008
Source:
Uppsala University
Summary:
Scientists have demonstrated an atomistic mechanism of hydrogen release in magnesium nanoparticles -- a potential hydrogen storage material.

An international research team led by Swedish Professor Rajeev Ahuja, Uppsala University, has demonstrated an atomistic mechanism of hydrogen release in magnesium nanoparticles -- a potential hydrogen storage material.

Related Articles


It is becoming clear that cars of the future will have to move from using the combination of petrol and a combustion engine in order to combat global warming and potential oil shortages. One of the prime candidate technologies are fuel cells using hydrogen gas as fuel, chiefly because hydrogen is among the most abundant elements on earth and is able of producing energy through chemical reactions with oxygen in the fuel cells releasing only water - an environmentally benign by-product. Storing hydrogen gas in a compact way is, however, still an unsolved problem.

Much research effort has been directed at absorbing hydrogen in metal powders, forming so-called metal hydrides. Magnesium may absorb up to 7.7 weight per cent of hydrogen, and has commonly been studied for this purpose, especially since fast loading and unloading of hydrogen can be accomplished by adding catalysts like iron and nickel particles.

It has been speculated that the catalysts act as shuttles, helping to transport hydrogen out of the material. With the help of computer simulations of magnesium clusters at the quantum mechanical level, the Uppsala researchers and their colleagues have now been able to show in atomic scale how this happens and why only a small amount of catalysts are necessary to improve the hydrogen release. The extensive simulations were performed at Uppsala University's Multidisciplinary Center for Advanced Computational Science (UPPMAX).

"We expect the findings to aid further technical improvements of magnesium-based hydrogen storage materials, as well as other related light metal hydrides," says Professor Raajev Ahuja.


Story Source:

The above story is based on materials provided by Uppsala University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Larsson et al. Role of catalysts in dehydrogenation of MgH2 nanoclusters. Proceedings of the National Academy of Sciences, 2008; DOI: 10.1073/pnas.0711743105

Cite This Page:

Uppsala University. "Promising Step Towards More Effective Hydrogen Storage." ScienceDaily. ScienceDaily, 18 June 2008. <www.sciencedaily.com/releases/2008/06/080616115724.htm>.
Uppsala University. (2008, June 18). Promising Step Towards More Effective Hydrogen Storage. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2008/06/080616115724.htm
Uppsala University. "Promising Step Towards More Effective Hydrogen Storage." ScienceDaily. www.sciencedaily.com/releases/2008/06/080616115724.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

NASA's First 3-D Printer In Space Creates Its First Object

NASA's First 3-D Printer In Space Creates Its First Object

Newsy (Nov. 26, 2014) The International Space Station is now using a proof-of-concept 3D printer to test additive printing in a weightless, isolated environment. Video provided by Newsy
Powered by NewsLook.com
Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Reuters - Innovations Video Online (Nov. 26, 2014) Innovative recycling project in La Paz separates city waste and converts plastic garbage into school furniture made from 'plastiwood'. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Blu-Ray Discs Getting Second Run As Solar Panels

Blu-Ray Discs Getting Second Run As Solar Panels

Newsy (Nov. 26, 2014) Researchers at Northwestern University are repurposing Blu-ray movies for better solar panel technology thanks to the discs' internal structures. Video provided by Newsy
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
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