Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates

Shimada, Jin; Sugahara, Takeshi; Tani, Atsushi et al.

Energy and Fuels, 2024, 38(7), 6471-6477

Number of Access:57（2025-04-10 00:29 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/94974

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Title
Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates
Creator
CreatorName
Shimada, Jin
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
1000070294155 1000070294155
researchmap permalink
Takahiro_ueda Takahiro_ueda
Scopus Author ID
7403982331 7403982331
CreatorName
Ueda, Takahiro
CreatorName
Tsugaya, Riko
NRID
1000090550070 1000090550070
CreatorName
Tsunashima, Katsuhiko
NRID
1000080208800 1000080208800
researchmap permalink
read0013780 read0013780
Scopus Author ID
7402768651 7402768651
CreatorName
Hirai, Takayuki
Subject
Semiclathrate hydrate
Electrical conductivity
Water reorientation
Proton conduction
Halide anion
Description
Shimada J., Sugahara T., Tani A., et al. Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates. Energy and Fuels , (2024); https://doi.org/10.1021/acs.energyfuels.4c00161.
Abstract
Semiclathrate hydrates are electroconductive materials for possible solid electrolytes and are also useful for monitoring their formation and dissociation processes. In the present study, the electrical conductivities and electrical relaxation times in the single-crystalline tetra-n-butylammonium (TBA) chloride and fluoride semiclathrate hydrates were measured and compared with those of the TBA-bromide semiclathrate hydrate. In the descending order of the electrical conductivity, the largest was the TBA-bromide semiclathrate hydrate, followed by TBA-chloride and TBA-fluoride semiclathrate hydrates. On the other hand, 2H NMR spin-lattice relaxation times in their deuterates were similar. Although the reorientation motion of water molecules should be a significant factor to govern the electrical conductivity in these semiclathrate hydrates, the present results reveal that the difference between the electrical conductivities in three TBA-halide semiclathrate hydrates would be caused by the concentration of the proton, a conduction carrier, rather than the diffusion processes. Additionally, electrical conductivity in the single-crystalline TBA-hydroxide semiclathrate hydrate was measured. The electrical conductivity even in single crystals was much higher than those in the TBA-halide semiclathrate hydrates.
Publisher
American Chemical Society
Source Title
Energy and Fuels
Volume (Issue)
38(7)
Page
6471-6477
Date of Issued
2024-04-04
Language
English
Handle URL
https://hdl.handle.net/11094/94974
PISSN
08870624
eISSN
15205029
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1021/acs.energyfuels.4c00161
Access Rights
embargoed access
CopyRight
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, © 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.energyfuels.4c00161.
The full-text file will be made open to the public on 4 April 2025 in accordance with the publisher's policy.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article