Non-photochemical laser-induced nucleation of supercooled glacial acetic acid.

Non-photochemical laser-induced nucleation of supercooled glacial acetic acid.
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非光化学激光诱导过冷冰醋酸成核。

DOI:
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发表时间:
2012
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
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通讯作者:
A. Alexander
A. Alexander
中科院分区:
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文献类型:
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作者:
M. R. Ward;Stephanie McHugh;A. Alexander

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研究了非光化学激光诱导冰醋酸成核反应。在低功率(<100 MW cm(-2))下,成核率与峰值激光功率密度呈线性关系,阈值为(9.0 ± 4.2)MW cm(-2);在高功率下,成核率达到0.75 ± 0.24(2σ不确定度)的平台。基于预成核团簇极化率的简单模型给出了固液界面张力γ(SL)= 15.5 mJ m(-2)。希望这些结果能促进团簇结构和液体成核的实验和理论研究的新发展。
Non-photochemical laser-induced nucleation (NPLIN) of glacial acetic acid (GAA) is demonstrated. The fraction of samples nucleated depends linearly on peak laser power density at low powers (<100 MW cm(-2)) with a threshold of (9.0 ± 4.2) MW cm(-2); at higher laser powers the fraction reaches a plateau of 0.75 ± 0.24 (2σ uncertainties). A simple model based on polarizability of pre-nucleating clusters gives a value of the solid-liquid interfacial tension γ(SL) = 15.5 mJ m(-2). It is hoped that the results will stimulate new developments in experimental and theoretical studies of cluster structure and nucleation in liquids.
DOI: 10.1021/cg8007415
发表时间: 2009-02-01
影响因子: 3.8
作者:
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通讯作者: Camp, Philip J.
DOI: 10.1039/c1cp20990f
发表时间: 2011-01-01
影响因子: 3.3
作者:
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通讯作者: Meech, Stephen R.
DOI: 10.1021/ja905232m
发表时间: 2009-08-26
影响因子: 15
作者:
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