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A Cationic Polyelectrolyte‐Controlled Liquid Mineral Precursor Process in the BaCO 3 System
Author(s) -
Zhu Jianhua,
Huang Lei,
Cui Mingfang,
Ma Li,
Cao Fabin
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201403153
Subject(s) - polyelectrolyte , chemistry , cationic polymerization , chemical engineering , mineral , amorphous solid , phase (matter) , diffusion , polymer chemistry , polymer , organic chemistry , thermodynamics , physics , engineering
Biomimetic BaCO 3 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.