Preparation and Ferroelectric Properties of Ba(1-x-y)CaxCe2y/3TiO3 Nanotubes

5th Annual International Workshop on Materials Science and Engineering

Chen, Juntai^1 ; Zhou, Qiqi^1 ; Liu, Yang^1 ; Dong, Youming^1 ; Ma, Mengen^1 ; Deng, Xiangyun^1

College of Physics and Materials Science, Tianjin Normal University, Tianjin

300387, China^1

关键词: Coercive field;    Doping concentration;    Ferroelectric property;    Hydrothermal methods;    TiO2 nanotubes;    Typical hysteresis loop;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012052/pdf
DOI  :  10.1088/1757-899X/585/1/012052

来源: IOP

【 摘 要 】

In this paper, the microstructure and ferroelectric properties of Ba(1-x-y)CaxCe2y/3TiO3 nanotubes were prepared by hydrothermal method using TiO2 nanotube as templates. Ba(1-x-y)CaxCe2y/3TiO3 nanotubes at different concentration of Ca(CH3COO)2•H2O and (CH3CO2)3Ce•xH2O were investigated. The experimental results show that increasing the concentration of (CH3CO2)3Ce•xH2O and Ca(CH3COO)2•H2O are beneficial to the transition of TiO2 nanotubes to Ba(1-x-y)CaxCe2y/3TiO3 nanotubes and improve ferroelectricity, and the results show that in the Ca(CH3COO)2•H2O, (CH3CO2)3Ce•xH2O doping concentration of 0.032mol/L,0.008mol/, respectively, the surface morphology of Ba(1-x-y)CaxCe2y/3TiO3 nanotubes is the best. Typical hysteresis loops with remanent polarization and coercive field are 0.33 μC/cm2, and 33 kV/cm, respectively.