Electrosynthesis of high-purity TbMn2O5 nanoparticles and its nanocomposite with conjugated polymer: Surface, density of state and electrochemical investigation

Abstract

Herein, high-purity TbMn2O5 nanostructure has been synthesized by the electrochemical technique. Different mechanical properties such as particle size, texture coefficient and lattice constant, were obtained by Nelson-Riley functions, Scherrer's equation, Williamson-Hall methods and compared with computational and XRD data. The projector augmented-wave method (PAW) directly from the Kohn-Sham density functional was used to carry out all post-processing calculations including band structure and density of state (DOS) estimations along with the band gap. Then, hybrid Poly ortho aminophenol (POAP)/TbMn2O5 films, acting as active materials in energy storage device, were prepared through POAP electropolymerization in the presence of TbMn2O5 nanoparticles in order to enhance the electrochemical performance of the POAP film. In addition, POAP/TbMn2O5 composites exhibited good cycling stability, retaining 89% of the capacitance after 1000 charge/discharge cycles, owing to the high mechanical strength of the TbMn2O5.