Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates
Multiple H-2 occupancy in confined cages has been explored for the purpose of enhancing storage capacity. Furthermore, balancing the formation pressure with high storage capacity is one of the most significant factors. Here, we demonstrate the use of binary (LGM + N-2) hydrates to capture hydrogen c...
Published in: | The Journal of Physical Chemistry C |
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Online Access: | http://hdl.handle.net/10203/191086 https://doi.org/10.1021/jp5061254 |
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ftkoasas:oai:koasas.kaist.ac.kr:10203/191086 2023-05-15T17:12:00+02:00 Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates Park, SM Park, Seong Min Koh, DY Koh, Dong Yeun Kang, HR Kang, Hyery Lee, JW Lee, Jae Woo Lee, H Lee, Huen 201409 http://hdl.handle.net/10203/191086 https://doi.org/10.1021/jp5061254 ENG eng AMER CHEMICAL SOC CARBON-DIOXIDE; RAMAN-SPECTROSCOPY; METHANE HYDRATE; STORAGE; CLUSTERS; DYNAMICS ARTICLE A 2014 ftkoasas https://doi.org/10.1021/jp5061254 2015-01-30T00:53:24Z Multiple H-2 occupancy in confined cages has been explored for the purpose of enhancing storage capacity. Furthermore, balancing the formation pressure with high storage capacity is one of the most significant factors. Here, we demonstrate the use of binary (LGM + N-2) hydrates to capture hydrogen clusters under relatively mild conditions, even observing double H-2 occupancy in small cages. The cage occupancy and structures of hydrates were identified by the Raman spectroscopic analysis and high-resolution powder diffraction. The reaction product of binary (LGM + N-2) hydrates with H-2 molecules suggests the possibility of multiple H-2 occupancy in both small (5(12)) and large (5(12)6(4)) cages at relatively low pressures. Also, the lattice parameter decreases with an increase in H-2 occupancy. The unique and abnormal role of N-2 as a preoccupied coguest significantly affects the H-2 population in a crystalline hydrate matrix and further lowers the pressure for structure stabilization. Article in Journal/Newspaper Methane hydrate Korea Advanced Institute of Science and Technology: KOASAS - KAIST Open Access Self-Archiving System The Journal of Physical Chemistry C 118 35 20203 20208 |
institution |
Open Polar |
collection |
Korea Advanced Institute of Science and Technology: KOASAS - KAIST Open Access Self-Archiving System |
op_collection_id |
ftkoasas |
language |
English |
topic |
CARBON-DIOXIDE; RAMAN-SPECTROSCOPY; METHANE HYDRATE; STORAGE; CLUSTERS; DYNAMICS |
spellingShingle |
CARBON-DIOXIDE; RAMAN-SPECTROSCOPY; METHANE HYDRATE; STORAGE; CLUSTERS; DYNAMICS Park, SM Park, Seong Min Koh, DY Koh, Dong Yeun Kang, HR Kang, Hyery Lee, JW Lee, Jae Woo Lee, H Lee, Huen Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
topic_facet |
CARBON-DIOXIDE; RAMAN-SPECTROSCOPY; METHANE HYDRATE; STORAGE; CLUSTERS; DYNAMICS |
description |
Multiple H-2 occupancy in confined cages has been explored for the purpose of enhancing storage capacity. Furthermore, balancing the formation pressure with high storage capacity is one of the most significant factors. Here, we demonstrate the use of binary (LGM + N-2) hydrates to capture hydrogen clusters under relatively mild conditions, even observing double H-2 occupancy in small cages. The cage occupancy and structures of hydrates were identified by the Raman spectroscopic analysis and high-resolution powder diffraction. The reaction product of binary (LGM + N-2) hydrates with H-2 molecules suggests the possibility of multiple H-2 occupancy in both small (5(12)) and large (5(12)6(4)) cages at relatively low pressures. Also, the lattice parameter decreases with an increase in H-2 occupancy. The unique and abnormal role of N-2 as a preoccupied coguest significantly affects the H-2 population in a crystalline hydrate matrix and further lowers the pressure for structure stabilization. |
format |
Article in Journal/Newspaper |
author |
Park, SM Park, Seong Min Koh, DY Koh, Dong Yeun Kang, HR Kang, Hyery Lee, JW Lee, Jae Woo Lee, H Lee, Huen |
author_facet |
Park, SM Park, Seong Min Koh, DY Koh, Dong Yeun Kang, HR Kang, Hyery Lee, JW Lee, Jae Woo Lee, H Lee, Huen |
author_sort |
Park, SM Park, Seong Min |
title |
Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
title_short |
Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
title_full |
Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
title_fullStr |
Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
title_full_unstemmed |
Effect of Molecular Nitrogen on Multiple Hydrogen Occupancy in Clathrate Hydrates |
title_sort |
effect of molecular nitrogen on multiple hydrogen occupancy in clathrate hydrates |
publisher |
AMER CHEMICAL SOC |
publishDate |
2014 |
url |
http://hdl.handle.net/10203/191086 https://doi.org/10.1021/jp5061254 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_doi |
https://doi.org/10.1021/jp5061254 |
container_title |
The Journal of Physical Chemistry C |
container_volume |
118 |
container_issue |
35 |
container_start_page |
20203 |
op_container_end_page |
20208 |
_version_ |
1766068756299120640 |