Supramolecular crystal growth in concentrated suspensions of charged monodisperse spherical silica particles

被引：10
|
作者：
Serdobintseva, VV [1 ]
Kalinin, DV
Danilyuk, AF
Rudina, NA
机构：
[1] Inst Mineral & Petrog, Novosibirsk 630090, Russia
[2] Boreskov Inst Catalysis, Novosibirsk 630090, Russia
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 1999年 / 68卷 / 02期
关键词：
spherical silica particles; crystallization; models of crystal growth;
D O I：
10.1007/BF02475518
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Concentrated suspensions of charged monodisperse spherical silica particles (MSSP) stabilized by alkalis or ammonia are able to crystallize at a certain destabilization. Crystal structures with the particles fixed at certain distances from each other show an isotropic normal mechanism of continuous growth with a rough phase boundary. The crystallization is determined by three parameters, viz. the concentration of particles, temperature, the thickness of the ion atmosphere around the particles and the concentration of counterions. The crystallization of MSSP suspensions is considered as a model of the supramolecular crystallization in the field of synthesis of mesoporous structures.
引用
收藏
页码：313 / 318
页数：6
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