Synthesis of hierarchical superstructures consisting of BaCrO4 nanobelts in catanionic reverse micelles

A variety of novel BaCrO4 nanostructures, such as nanobelts and their tree-like superstructures (see Figure), have been synthesized in a unique catanionic reverse micelle system by simply changing the mixing ratio between the anionic and cationic surfactants. This synthetic method provides a simple, novel method for direct assembly of inorganic nanobelts into hierarchical superstructures.