Proceedings of the 2015 International Conference on Environmental Engineering and Remote Sensing

Hydrogen Storage in a Potential Well for Room-Temperature Applications

Authors
Jaehyun Bae, Yea-lee Lee, Jeongwoon Hwang, Dongwook Kim, Jong Hyun Jung, Seungwook Son, Jisoon Ihm
Corresponding Author
Jaehyun Bae
Available Online September 2015.
DOI
10.2991/eers-15.2015.10How to use a DOI?
Keywords
hydrogen storage; potential well; van der Waals equation
Abstract

Hydrogen has a gravimetric energy density nearly 3 times that of gasoline, and yet does not emit carbon dioxide at all in burning. However, since hydrogen exists in a bulky gas form at ambient conditions, the problem in the safe and efficient storage of hydrogen is a serious obstacle to the commercial use of hydrogen as a fuel. There is a recent proposal that, if we store the molecular hydrogen gas in a potential well created inside a material, the storage density increases by a Boltzmann factor which can be enormously large with a moderate potential depth even at room temperature. In the present study, we carry out a theoretical analysis for the storage at room temperature. Starting from a realistic description of hydrogen gas using the van der Waals equation of state, the expression for the density enhancement in the potential well is obtained. Especially, the first-order expansion of the equation provides us with an analytic solution which correctly shows the effects of the excluded volume and the dispersion interaction. We interpret and discuss the results taking into account the limitations of the van der Waals model.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Environmental Engineering and Remote Sensing
Series
Advances in Computer Science Research
Publication Date
September 2015
ISBN
10.2991/eers-15.2015.10
ISSN
2352-538X
DOI
10.2991/eers-15.2015.10How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Jaehyun Bae
AU  - Yea-lee Lee
AU  - Jeongwoon Hwang
AU  - Dongwook Kim
AU  - Jong Hyun Jung
AU  - Seungwook Son
AU  - Jisoon Ihm
PY  - 2015/09
DA  - 2015/09
TI  - Hydrogen Storage in a Potential Well for Room-Temperature Applications
BT  - Proceedings of the 2015 International Conference on Environmental Engineering and Remote Sensing
PB  - Atlantis Press
SP  - 37
EP  - 39
SN  - 2352-538X
UR  - https://doi.org/10.2991/eers-15.2015.10
DO  - 10.2991/eers-15.2015.10
ID  - Bae2015/09
ER  -