Nanoparticle generation: The concept of a stagnation size region for condensation growth

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Title Nanoparticle generation: The concept of a stagnation size region for condensation growth
Author Altman, Igor; Agranovski, Igor E; Choi, M.
Journal Name Physical Review E
Year Published 2004
Place of publication College Park, MD, US
Publisher American Physical Society
Abstract We demonstrate that the critical size cluster concept, commonly used in a nucleation theory, should be given some further attention. It has been implied that the supercritical cluster (size larger than critical) can grow via condensation. However, as we show, there is a size range, where the arrival of a vapor molecule onto a cluster surface leads to such a heating of the supercritical cluster that, due to possible evaporation, makes it unstable and, therefore, disables its condensation growth. The described phenomenon leads to substantial accumulation of certain size clusters in the system, which is clearly evident from our experimental investigation. The found suppression of the nucleus growth within the certain size range (exceeding critical) has fundamental implications for many systems where the generation of nanoparticles occur at high temperatures.
Peer Reviewed Yes
Published Yes
Publisher URI http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000070000006062603000001&idtype=cvips&gifs=Yes
Copyright Statement Copyright 2004 American Physical Society. Reproduced in accordance with the copyright policy of the publisher. This journal is available online - use hypertext links.
Volume 70
Issue Number 6
Page from 062603
Page to 062603
ISSN 1539-3755
Date Accessioned 2005-03-30
Language en_AU
Faculty Faculty of Environmental Sciences
Subject Nanotechnology
URI http://hdl.handle.net/10072/5215
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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