http://hdl.handle.net/20.500.12128/22926
Tytuł: | Pressure-induced liquid-liquid transition in a family of ionic materials |
Autor: | Wojnarowska, Żaneta Cheng, Shinian Yao, Beibei Swadźba-Kwaśny, Małgorzata McLaughlin, Shannon McGrogan, Anne Delavoux, Yoan Paluch, Marian |
Słowa kluczowe: | Liquid−liquid transition; LLT; ionic materials |
Data wydania: | 2022 |
Źródło: | "Nature Communication" (2022), vol. 13, art. no. 1342 |
Abstrakt: | Liquid−liquid transition (LLT) between two disordered phases of single-component material remains one of the most intriguing physical phenomena. Here, we report a first-order LLT in a series of ionic liquids containing trihexyl(tetradecyl)phosphonium cation [P666,14]+ and anions of different sizes and shapes, providing an insight into the structure-property relationships governing LLT. In addition to calorimetric proof of LLT, we report that ion dynamics exhibit anomalous behavior during the LLT, i.e., the conductivity relaxation times (τσ) are dramatically elongated, and their distribution becomes broader. This peculiar behavior is induced by isobaric cooling and isothermal compression, with the τσ(TLL,PLL) constant for a given system. The latter observation proves that LLT, in analogy to liquid-glass transition, has an isochronal character. Finally, the magnitude of discontinuity in a specific volume at LLT was estimated using the Clausius-Clapeyron equation. |
URI: | http://hdl.handle.net/20.500.12128/22926 |
DOI: | 10.1038/s41467-022-29021-0 |
ISSN: | 2041-1723 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Wojnarowska_preassure_induced_liquid_liquid.pdf | 1,21 MB | Adobe PDF | Przejrzyj / Otwórz |
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