新規固体電解質としてのセミクラスレートハイドレートの性能評価と伝導機構解明
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1.Introduction of Cyclic Structures into Phosphonium Salts As Potential Guest Substances for Ionic Clathrate Hydrates
- 关键词:
- Chlorine compounds;Hydrates;Hydration;Clathrate hydrate;Cyclic structures;Cyclohexyl;Dissociation enthalpies;Dissociation temperature;Guest compounds;Phase equilibrium temperature;Phosphonium salts;Steric structure;Temperature composition
- Kawabata, K.;Azuma, S.;Shimada, J.;Tsuchida, Y.;Tsunashima, K.;Sugahara, T.;Tani, A.
- 《24th Symposium on Molten Salts and Ionic Liquids: In Memory of Yasuhiko Ito, MSIL 2024, held at the PRiME 2024 Meeting》
- 2024年
- October 6, 2024 - October 11, 2024
- Honolulu, HI, United states
- 会议
An ionic clathrate hydrate composed of tri-n-butylbenzylphosphonium chloride has been investigated from the viewpoint of phase equilibrium (temperature-composition) relations in comparison with an ionic clathrate hydrate with tri-nbutyl(cyclohexylmethyl)phosphonium bromide. The highest dissociation temperature of the ionic clathrate hydrates composed of tri-n-butylbenzylphosphonium chloride and tri-nbutyl(cyclohexyl-methyl)phosphonium bromide were 274.4 ± 0.1 K and 276.0 ± 0.1 K, respectively at the atmospheric pressure. The dissociation enthalpy of tri-n-butylbenzyl-phosphonium chloride ionic clathrate hydrate was 192 ± 3 kJ·kg−1. These results allow us to suggest that controlling steric structures in the guest compounds might be one of the options for tuning the equilibrium temperatures of ionic clathrate hydrates. ©The Electrochemical Society.
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