Decoding a Percolation Phase Transition of Water at similar to 330 K with a Nanoparticle Ruler
authors Brites, CDS; Zhuang, BL; Debasu, ML; Ding, D; Qin, X; Maturi, FE; Lim, WWY; Soh, D; Rocha, J; Yi, ZG; Liu, XG; Carlos, LD
nationality International
journal JOURNAL OF PHYSICAL CHEMISTRY LETTERS
keywords LIQUID-LIQUID TRANSITION; THERMAL-CONDUCTIVITY; X-RAY; DENSITY; NANOCRYSTALS; RELAXATION; DYNAMICS; BEHAVIOR; TESTS; ORDER
abstract Liquid water, despite its simple molecular structure, remains one of the most fascinating and complex substances. Most notably, many questions continue to exist regarding the phase transitions and anomalous properties of water, which are subtle to observe experimentally. Her; we report a sharp transition in water at 330 K unveiled through experimental measurements of the instantaneous Brownian velocity of NaYF4:Yb/Er upconversion nanoparticles in water. Our experimental investigations, corroborated by molecular dynamics simulations, elucidate a geometrical phase transition where a low-density liquid (LDL) clusters become percolated below 330 K. Around this critical temperature, we find the sizes of the LDL clusters to be similar to those of the nanoparticles, confirming the role of the upconversion nanoparticle as a powerful ruler for measuring the extensiveness of the LDL hydrogen-bond network and nanometer-scale spatial changes (20-100 nm) in liquids. Additionally, a new order parameter that unequivocally classifies water molecules into two local geometric states is introduced, providing a new tool for understanding and modeling water's many anomalous properties and phase transitions.
publisher AMER CHEMICAL SOC
issn 1948-7185
year published 2020
volume 11
issue 16
beginning page 6704
ending page 6711
digital object identifier (doi) 10.1021/acs.jpclett.0c02147
web of science category Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000563737900034
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 6.71
5 year journal impact factor 7.811
category normalized journal impact factor percentile 82.032
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg