Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates

Azuma, Sakura; Shimada, Jin; Tsunashima, Katsuhiko; Sugahara, Takeshi; Tani, Atsushi; Hirai, Takayuki

doi:https://doi.org/10.1021/acs.jced.2c00146

Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates

Azuma, Sakura; Shimada, Jin; Tsunashima, Katsuhiko et al.

Journal of Chemical and Engineering Data, 2022, 67(6), 1415-1420

Number of Access:221（2025-04-09 23:43 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/88582

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Title	Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates
Creator	CreatorName Azuma, Sakura
	CreatorName Shimada, Jin
	NRID 1000090550070 1000090550070 CreatorName Tsunashima, Katsuhiko
	NRID 1000020335384 1000020335384 ORCID 0000-0002-5236-5605 0000-0002-5236-5605 researchmap permalink read0191169 read0191169 Scopus Author ID 56212469300 56212469300 CreatorName Sugahara, Takeshi
	NRID 1000010335333 1000010335333 CreatorName Tani, Atsushi
	NRID 1000080208800 1000080208800 researchmap permalink read0013780 read0013780 Scopus Author ID 7402768651 7402768651 CreatorName Hirai, Takayuki
Description	Azuma S., Shimada J., Tsunashima K., et al. Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates. Journal of Chemical and Engineering Data, 67, 6, 1415 - 1420, May 25, 2022, © 2022 American Chemical Society. https://doi.org/10.1021/acs.jced.2c00146.
Abstract	Semiclathrate hydrates (SCHs) have received attention as thermal storage materials because of their equilibrium temperature and relatively large dissociation enthalpy. The alkyl length of quaternary onium cations significantly affects the equilibrium temperature and dissociation enthalpy of quaternary onium salt SCHs. To investigate the effects of the double bond introduced in onium cations, in the present study, the thermodynamic stability of tri-n-butylalkenylphosphonium bromide (P444(alkenyl)-Br: alkenyl = 3-butenyl (3═1) or 4-pentenyl (4═1)) SCH was investigated. The equilibrium temperatures and the dissociation enthalpies were determined to be (277.5 ± 0.1) K and (199 ± 2) J/g for P444(3═1)-Br SCH, and (274.8 ± 0.1) K and (188 ± 2) J/g for P444(4═1)-Br SCH. The equilibrium temperatures of P444(3═1)-Br SCH and P444(4═1)-Br SCH were lower than those of the corresponding normal alkyl SCHs (P4444-Br and P4445-Br), although the equilibrium temperature of tri-n-butylallylphosphonium bromide SCH was higher than that of the P4443-Br SCH.
Publisher	American Chemical Society
Source Title	Journal of Chemical and Engineering Data
Volume (Issue)	67(6)
Page	1415-1420
Date of Issued	2022-05-25
Language	English
Handle URL	https://hdl.handle.net/11094/88582
PISSN	00219568
eISSN	15205134
NCID	AA12097209
NCID	AA00694936
Relation.isVersionOf	DOI (Publisher Version) https://doi.org/10.1021/acs.jced.2c00146
Access Rights	open access
CopyRight	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical and Engineering Data, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jced.2c00146.
oaire:version	Accepted Manuscript
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Journal of Chemical and Engineering Data. 2022, 67(6), p. 1415-1420
DC.title	Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates
DC.creator	Azuma, Sakura
	Shimada, Jin
	Tsunashima, Katsuhiko
	Sugahara, Takeshi
	Tani, Atsushi
	Hirai, Takayuki
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2022-05-25
DC.identifier	https://doi.org/10.1021/acs.jced.2c00146
DC.description	Azuma S., Shimada J., Tsunashima K., et al. Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates. Journal of Chemical and Engineering Data, 67, 6, 1415 - 1420, May 25, 2022, © 2022 American Chemical Society. https://doi.org/10.1021/acs.jced.2c00146.
DCTERMS.abstract	Semiclathrate hydrates (SCHs) have received attention as thermal storage materials because of their equilibrium temperature and relatively large dissociation enthalpy. The alkyl length of quaternary onium cations significantly affects the equilibrium temperature and dissociation enthalpy of quaternary onium salt SCHs. To investigate the effects of the double bond introduced in onium cations, in the present study, the thermodynamic stability of tri-n-butylalkenylphosphonium bromide (P444(alkenyl)-Br: alkenyl = 3-butenyl (3═1) or 4-pentenyl (4═1)) SCH was investigated. The equilibrium temperatures and the dissociation enthalpies were determined to be (277.5 ± 0.1) K and (199 ± 2) J/g for P444(3═1)-Br SCH, and (274.8 ± 0.1) K and (188 ± 2) J/g for P444(4═1)-Br SCH. The equilibrium temperatures of P444(3═1)-Br SCH and P444(4═1)-Br SCH were lower than those of the corresponding normal alkyl SCHs (P4444-Br and P4445-Br), although the equilibrium temperature of tri-n-butylallylphosphonium bromide SCH was higher than that of the P4443-Br SCH.
DC.rights	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical and Engineering Data, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jced.2c00146.
DC.format	88582
citation_title	Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates
citation_author	Azuma, Sakura
	Shimada, Jin
	Tsunashima, Katsuhiko
	Sugahara, Takeshi
	Tani, Atsushi
	Hirai, Takayuki
citation_publisher	American Chemical Society
citation_language	English
citation_date	2022-05-25
citation_journal_title	Journal of Chemical and Engineering Data
citation_volume	67
citation_issue	6
citation_firstpage	1415
citation_lastpage	1420
citation_doi	https://doi.org/10.1021/acs.jced.2c00146
citation_public_url	https://hdl.handle.net/11094/88582

Equilibrium Phase Relations and Dissociation Enthalpies of Tri- n-butylalkenylphosphonium Bromide Semiclathrate Hydrates

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