Fragile-to-strong liquid transition in deeply supercooled confined water

A. Faraone, L. Liu, C. Y. Mou, C. W. Yen, S. H. Chen

研究成果: 雜誌貢獻文章同行評審

284 引文 斯高帕斯(Scopus)

摘要

Confining water in lab synthesized nanoporous silica matrices MCM-41-S with pore diameters of 18 and 14 Å, we have been able to study the molecular dynamics of water in deeply supercooled states, down to 200 K. Using quasielastic neutron scattering and analyzing the data with the relaxing cage model, we determined the temperature variation of the average translational relaxation time and its Q-dependence. We find a clear evidence of an abrupt change of the relaxation time behavior at T ≈ 225 K, which we interpreted as the predicted fragile-to-strong liquid-liquid transition.

原文英語
文章編號4
頁(從 - 到)10843-10846
頁數4
期刊Journal of Chemical Physics
121
發行號22
DOIs
出版狀態已發佈 - 12月 8 2004
對外發佈

ASJC Scopus subject areas

  • 物理與天文學 (全部)
  • 物理與理論化學

指紋

深入研究「Fragile-to-strong liquid transition in deeply supercooled confined water」主題。共同形成了獨特的指紋。

引用此