A Cationic Polyelectrolyte-Controlled Liquid Mineral Precursor Process in the BaCO3 System

作者:Zhu Jianhua*; Huang Lei; Cui Mingfang; Ma Li; Cao Fabin
来源:European Journal of Inorganic Chemistry, 2015, 2015(10): 1819-1826.
DOI:10.1002/ejic.201403153

摘要

Biomimetic BaCO3 materials with various morphologies have been synthesized in a cationic polyelectrolyte-controlled mineral solution. Investigations showed that the mineral solution initially underwent a phase separation to produce a condensed liquidlike amorphous intermediate. This mineral solution was a typical reaction-diffusion field, in which concentric ring patterns were frequently observed. Subsequently, overgrowth fibers were seen growing on large microspheres and their growth could be interpreted in terms of a mesocrystal self-assembly process. This work opens up the possibility of using positively charged polyelectrolytes to design a very wide range of inorganic materials.