Abstract
The crystal structure of the binary clathrate hydrate of methane (CH 4) and ethanol was identified by powder X-ray diffraction. Raman spectroscopic measurements were also performed. Because hydrogen bonding between the water and ethanol molecules likely affects the hydrate formation and its stability, the role of ethanol for hydrate formation and its stability is important for a further understanding of the guest-host interactions in complex inclusion compounds. In this study, we provide evidence for the occupation of ethanol with CH4in a structure II hydrate, whereas the ethanol is one of the inhibitors for hydrate formation. The cage occupancies of CH 4and ethanol as guest molecules within the hydrate cages was also estimated. It is shown that hexakaidecahedral (51264) cages were occupied by not only ethanol, but also CH4, even though a sufficient number of ethanol molecules existed in the current hydrate-forming system.
| Original language | English |
|---|---|
| Pages (from-to) | 12598-12601 |
| Number of pages | 4 |
| Journal | Journal of Physical Chemistry C |
| Volume | 113 |
| Issue number | 28 |
| DOIs | |
| Publication status | Published - 2009 Jul 16 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Energy(all)
Cite this
Binary ethanol-Methane clathrate hydrate formation in the system CH 4-C2H5OH-H2O : Confirmation of structure iI hydrate formation. / Yasuda, Keita; Takeya, Satoshi; Sakashita, Mami; Yamawaki, Hiroshi; Ohmura, Ryo.
In: Journal of Physical Chemistry C, Vol. 113, No. 28, 16.07.2009, p. 12598-12601.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Binary ethanol-Methane clathrate hydrate formation in the system CH 4-C2H5OH-H2O
T2 - Confirmation of structure iI hydrate formation
AU - Yasuda, Keita
AU - Takeya, Satoshi
AU - Sakashita, Mami
AU - Yamawaki, Hiroshi
AU - Ohmura, Ryo
PY - 2009/7/16
Y1 - 2009/7/16
N2 - The crystal structure of the binary clathrate hydrate of methane (CH 4) and ethanol was identified by powder X-ray diffraction. Raman spectroscopic measurements were also performed. Because hydrogen bonding between the water and ethanol molecules likely affects the hydrate formation and its stability, the role of ethanol for hydrate formation and its stability is important for a further understanding of the guest-host interactions in complex inclusion compounds. In this study, we provide evidence for the occupation of ethanol with CH4in a structure II hydrate, whereas the ethanol is one of the inhibitors for hydrate formation. The cage occupancies of CH 4and ethanol as guest molecules within the hydrate cages was also estimated. It is shown that hexakaidecahedral (51264) cages were occupied by not only ethanol, but also CH4, even though a sufficient number of ethanol molecules existed in the current hydrate-forming system.
AB - The crystal structure of the binary clathrate hydrate of methane (CH 4) and ethanol was identified by powder X-ray diffraction. Raman spectroscopic measurements were also performed. Because hydrogen bonding between the water and ethanol molecules likely affects the hydrate formation and its stability, the role of ethanol for hydrate formation and its stability is important for a further understanding of the guest-host interactions in complex inclusion compounds. In this study, we provide evidence for the occupation of ethanol with CH4in a structure II hydrate, whereas the ethanol is one of the inhibitors for hydrate formation. The cage occupancies of CH 4and ethanol as guest molecules within the hydrate cages was also estimated. It is shown that hexakaidecahedral (51264) cages were occupied by not only ethanol, but also CH4, even though a sufficient number of ethanol molecules existed in the current hydrate-forming system.
UR - http://www.scopus.com/inward/record.url?scp=68149141501&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68149141501&partnerID=8YFLogxK
U2 - 10.1021/jp901685t
DO - 10.1021/jp901685t
M3 - Article
AN - SCOPUS:68149141501
VL - 113
SP - 12598
EP - 12601
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 28
ER -