|About this Abstract
||Materials Science & Technology 2019
||Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
||Topochemical Conversion of Different Shaped BaTiO3 and Its Effect on Boosting Electrical Properties of Composite Materials
||Jing Fu, Haiyan Zhao, Mupeng Zheng, Mankang Zhu, Yudong Hou
|On-Site Speaker (Planned)
The topochemical method (TCM) is one of the strategic approaches aimed at controlling ferroelectric oxide morphology. In this work, different shaped BaTiO3 filler, i.e. spherical particles , nanorods and platelets, have been synthesized by TCM through choosing the suitable precursor templates. The topochemical reaction process is accompanied by a localized solid-state compound transformation. Based on the principle of chemical thermodynamics, the topological mechanism related to the assembly of [TiO6] octahedron units has been proposed. Further, by selecting the filler of the specific morphology and optimizing the structural design of the polymer-based composite material, the flexible piezoelectric energy harvester and the energy-storage capacitor can be constructed. The enhancement mechanism of electrical performance has been discussed with respect to intrinsic polarization of filler, interfacial polarization and electric field distribution. This work has a good reference value for developing electrically functional composite material based on tailoring the shape and arrangement of ferroelectric filler.
||Definite: At-meeting proceedings