Kinetics-Controllable Hetero-Precipitation Process on the Nanoscale Solid-Liquid Interface of Spherical Particles

摘要:

文章预览

Based on the growth kinetics of the SiO2 particles, we studied the kinetic hetero-precipitation process on the interface of polystyrene (PS) microscale particles. The nanoscale SiO2 shell thickness increased with increasing time and was proportional to the square root of the initial concentration of TEOS precursor while governed by hetero-precipitation process. Moreover, the hetero-precipitation process followed the first-order growth mechanism of silica onto the surface of templating PS pariticles. Properly controlling the reagent concentrations could alleviate and even avoid, to a certain extent, aggregation among PS@SiO2 particles that could otherwise have an adverse effect on the properties and applications of those composite particles and the corresponding SiO2 hollow products.

信息:

期刊:

编辑:

Rongming Wang, Ying Wu and Xiaofeng Wu

页数:

45-50

DOI:

10.4028/www.scientific.net/MSF.688.45

引用:

X. F. Wu et al., "Kinetics-Controllable Hetero-Precipitation Process on the Nanoscale Solid-Liquid Interface of Spherical Particles", Materials Science Forum, Vol. 688, pp. 45-50, 2011

上线时间:

June 2011

输出:

价格:

$38.00

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