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Heterogeneous nucleation of supercooled water, and the effect of an added catalyst


Heneghan, AF and Wilson, PW and Haymet, ADJ, Heterogeneous nucleation of supercooled water, and the effect of an added catalyst, National Academy of Sciences of The United States of America. Proceedings, 99, (15) pp. 9631-4. ISSN 0027-8424 (2002) [Refereed Article]

DOI: doi:10.1073/pnas.152253399


The statistics of liquid-to-crystal nucleation are measured rigorously by using a recently developed automated lag-time apparatus (ALTA). A single sample, in this case a sample of pure water both with and without an (insoluble) AgI crystal, is repeatedly cooled, nucleated, and thawed. Analysis of the data, coupled with a second kind of experiment, shows that the statistics of nucleation are consistent with a first-order kinetic mechanism over a wide range of supercooling temperatures. The limitations of classical nucleation theory are exhibited. Our analysis unifies many related experiments in biology, physics, chemistry, and chemical engineering.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Physical chemistry
Research Field:Physical chemistry not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Wilson, PW (Professor Peter Wilson)
ID Code:99873
Year Published:2002
Web of Science® Times Cited:85
Deposited By:Faculty of Health
Deposited On:2015-04-14
Last Modified:2015-04-14

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