Enhanced electrorheological performance of barium-doped SiO2/TiO2 hollow mesoporous nanospheres†
Abstract
Barium-doped SiO2/TiO2 hollow mesoporous nanospheres (Ba-HNSs) exhibited 22.5 times higher maximum yield stress than commercial BaTiO3 nanopowders, and 4 times faster ER response than pristine. These superior ER properties were originated from the unique hollow mesoporous structure and high dielectric properties of BaTiO3 in the Ba-HNSs.