Skip navigation

Please use this identifier to cite or link to this item:
Title: Pressure-induced liquid-liquid transition in a family of ionic materials
Authors: Wojnarowska, Żaneta
Cheng, Shinian
Yao, Beibei
Swadźba-Kwaśny, Małgorzata
McLaughlin, Shannon
McGrogan, Anne
Delavoux, Yoan
Paluch, Marian
Keywords: Liquid−liquid transition; LLT; ionic materials
Issue Date: 2022
Citation: "Nature Communication" (2022), vol. 13, art. no. 1342
Abstract: 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.
DOI: 10.1038/s41467-022-29021-0
ISSN: 2041-1723
Appears in Collections:Artykuły (WNŚiT)

Files in This Item:
File Description SizeFormat 
Wojnarowska_preassure_induced_liquid_liquid.pdf1,21 MBAdobe PDFView/Open
Show full item record

Uznanie Autorstwa 3.0 Polska Creative Commons License Creative Commons