Study of nanodispersed aluminum and iron alcosols by photoacoustic spectroscopy

被引:2
作者
An, Vladimir [1 ]
de Izarra, Charles [2 ]
Saveliev, Gennady [1 ]
机构
[1] Tomsk Polytech Univ, Inst Phys Adv Technol, Tomsk 634028, Russia
[2] Univ Orleans, CNRS, Grp Rech Energet Milieux Ionises, F-45067 Orleans 2, France
关键词
Nanodispersed alcosols; Photoacoustic spectroscopy; Ultrasonic treatment; RADIATION;
D O I
10.1016/j.optcom.2011.02.029
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Nanodispersed aluminum and iron alcosols were prepared by ultrasonic dispersion of nanodispersed aluminum and iron powders in absolute ethanol. The photoacoustic signal (PAS) produced in modulated CO2 laser irradiation (1.026 and 1.096 kHz) of alcosols depends on the nature and method of nanoparticle fabrication and does not depend on their concentration in ethanol (within 1-5 g/l). Chemical interaction between metal nanoparticles and ethanol activated by laser irradiation or/and ultrasound is considered as the cause of the PAS. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:3124 / 3128
页数:5
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