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Meeting Materials Science & Technology 2019
Symposium Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
Presentation Title Topochemical Conversion of Different Shaped BaTiO3 and Its Effect on Boosting Electrical Properties of Composite Materials
Author(s) Jing Fu, Haiyan Zhao, Mupeng Zheng, Mankang Zhu, Yudong Hou
On-Site Speaker (Planned) Jing Fu
Abstract Scope 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.
Proceedings Inclusion? Definite: At-meeting proceedings


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