Hydrogen storage in nanoparticles works

Mar 31, 2008

Dutch chemist Kees Baldé has demonstrated that hydrogen can be efficiently stored in nanoparticles. This allows hydrogen storage to be more easily used in mobile applications. Baldé discovered that 30 nanometre particles of the metal hydride sodium alanate make the favourable extraction and storage of hydrogen possible.

Hydrogen is considered to be a clean storage and transport medium for energy. Therefore many future scenarios are based on the storage and transport of hydrogen. Various obstacles need to be overcome before this so-called hydrogen economy can be used on a large scale. One of these is the storage of hydrogen.

A highly-promising method for storing hydrogen is its absorption in a metal hydride. A disadvantage of this method is that hydrogen uptake and release rates are low for metal hydrides. Reducing the particle size of the metal hydride to a nanometre scale is a possible solution to this problem.

Baldé demonstrated that 30 nanometre particles of sodium alanate store hydrogen in a highly efficient manner. With the addition of a titanium catalyst, a further reduction in the particle size to 20 nanometres is possible and this leads to an even more efficient storage of hydrogen.

The deactivation process of the titanium catalyst was also studied because this inhibits the uptake and release rate of hydrogen. Structural characteristics that exert an influence on the catalyst's activity were found. This knowledge can be used to develop an improved catalyst.

Source: NWO

Explore further: New paint-like coating makes tough surfaces that repel spills, scratches (w/ Video)

add to favorites email to friend print save as pdf

Related Stories

Cheap asphalt provides 'green' carbon capture

Jan 07, 2015

(Phys.org)—The best material to keep carbon dioxide from natural gas wells from fouling the atmosphere may be a derivative of asphalt, according to Rice University scientists.

Future batteries: Lithium-sulfur with a graphene wrapper

Dec 16, 2014

What do you get when you wrap a thin sheet of the "wonder material" graphene around a novel multifunctional sulfur electrode that combines an energy storage unit and electron/ion transfer networks? An extremely ...

The simplest element: Turning hydrogen into 'graphene'

Dec 16, 2014

New work from Carnegie's Ivan Naumov and Russell Hemley delves into the chemistry underlying some surprising recent observations about hydrogen, and reveals remarkable parallels between hydrogen and graphene ...

Recommended for you

Graphene meets heat waves

46 minutes ago

EPFL researchers have shed new light on the fundamental mechanisms of heat dissipation in graphene and other two-dimensional materials. They have shown that heat can propagate as a wave over very long distances. ...

Buckybomb shows potential power of nanoscale explosives

Mar 05, 2015

(Phys.org)—Scientists have simulated the explosion of a modified buckminsterfullerene molecule (C60), better known as a buckyball, and shown that the reaction produces a tremendous increase in temperatur ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.