Performance of B-Doped SrTiO_3/Ni Sheet for Supercapacitor Material Application

摘要

The development of energy storage devices encourages the sustainability of research on basic materials of supercapacitor technology. SrTiO_3 is one of metal oxide called as titanate alkali metal ATiO_3 (A = Ba, Sr, Ca). This material shows an excellent dielectric constant, thus expected to be potential as raw material of supercapacitor. In this work, boron was used as a dopant on the SrTiO_3 system to modify its local structure and enhance the electrical properties. Synthesis SrTi1-xBxO_3 was carried out using a solid-state reaction method followed by the sintering process in various molar ratio. The microstructure of SrTi1-xBxO_3 compound was identified by X-ray Diffraction with Cu-Kα. XRD pattern identified the presence of SrTi1-xBxO_3 phase with a slight change in the lattice parameters. I-V measurement confirmed that the electrical conductivity increased gradually up to 16.04 Ω~(-1)cm~(-1). For investigating their application for electrode materials, CV was employed and it presents that the specific capacitance and energy density of x = 0.08 were 5.488 Fg~(-1) and 0.110 Jg~(-1).