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A Reversible Nanoconfined Chemical Reaction

Nielsen, Thomas K.; Boesenberg, Ulrike; Gosalawit, Rapee; Dornheim, Martin; Cerenius, Yngve LU ; Besenbacher, Flemming and Jensen, Torben R. (2010) In ACS Nano 4(7). p.3903-3908
Abstract
Hydrogen is recognized as a potential, extremely interesting energy carrier system, which can facilitate efficient utilization of unevenly distributed renewable energy. A major challenge in a future "hydrogen economy" is the development of a safe, compact, robust, and efficient means of hydrogen storage, in particular, for mobile applications. Here we report on a new concept for hydrogen storage using nanoconfined reversible chemical reactions. LiBH4 and MgH2 nanoparticles are embedded in a nanoporous carbon aerogel scaffold with pore size D-max similar to 21 nm and react during release of hydrogen and form MgB2. The hydrogen desorption kinetics is significantly improved compared to bulk conditions, and the nanoconfined system has a high... (More)
Hydrogen is recognized as a potential, extremely interesting energy carrier system, which can facilitate efficient utilization of unevenly distributed renewable energy. A major challenge in a future "hydrogen economy" is the development of a safe, compact, robust, and efficient means of hydrogen storage, in particular, for mobile applications. Here we report on a new concept for hydrogen storage using nanoconfined reversible chemical reactions. LiBH4 and MgH2 nanoparticles are embedded in a nanoporous carbon aerogel scaffold with pore size D-max similar to 21 nm and react during release of hydrogen and form MgB2. The hydrogen desorption kinetics is significantly improved compared to bulk conditions, and the nanoconfined system has a high degree of reversibility and stability and possibly also improved thermodynamic properties. This new scheme of nanoconfined chemistry may have a wide range of interesting applications in the future, for example, within the merging area of chemical storage of renewable energy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
lithium, hydrogen storage, nanoconfinement, reactive hydride composite, borohydride, magnesium hydride
in
ACS Nano
volume
4
issue
7
pages
3903 - 3908
publisher
The American Chemical Society
external identifiers
  • wos:000280364800044
  • scopus:77955533751
ISSN
1936-086X
DOI
10.1021/nn1006946
language
English
LU publication?
yes
id
9d6f7c8f-3ffe-45f6-a6f0-7b228a8e9f7b (old id 1654716)
date added to LUP
2010-08-26 15:40:08
date last changed
2018-06-24 03:01:00
@article{9d6f7c8f-3ffe-45f6-a6f0-7b228a8e9f7b,
  abstract     = {Hydrogen is recognized as a potential, extremely interesting energy carrier system, which can facilitate efficient utilization of unevenly distributed renewable energy. A major challenge in a future "hydrogen economy" is the development of a safe, compact, robust, and efficient means of hydrogen storage, in particular, for mobile applications. Here we report on a new concept for hydrogen storage using nanoconfined reversible chemical reactions. LiBH4 and MgH2 nanoparticles are embedded in a nanoporous carbon aerogel scaffold with pore size D-max similar to 21 nm and react during release of hydrogen and form MgB2. The hydrogen desorption kinetics is significantly improved compared to bulk conditions, and the nanoconfined system has a high degree of reversibility and stability and possibly also improved thermodynamic properties. This new scheme of nanoconfined chemistry may have a wide range of interesting applications in the future, for example, within the merging area of chemical storage of renewable energy.},
  author       = {Nielsen, Thomas K. and Boesenberg, Ulrike and Gosalawit, Rapee and Dornheim, Martin and Cerenius, Yngve and Besenbacher, Flemming and Jensen, Torben R.},
  issn         = {1936-086X},
  keyword      = {lithium,hydrogen storage,nanoconfinement,reactive hydride composite,borohydride,magnesium hydride},
  language     = {eng},
  number       = {7},
  pages        = {3903--3908},
  publisher    = {The American Chemical Society},
  series       = {ACS Nano},
  title        = {A Reversible Nanoconfined Chemical Reaction},
  url          = {http://dx.doi.org/10.1021/nn1006946},
  volume       = {4},
  year         = {2010},
}