Heterostructure of CdO-ZnO nanoparticles intercalated on PANI matrix for better thermal and electrochemical performance

Abstract

New heterostructure of CdO-ZnO nanoparticles intercalated on PANI matrix (CZP) have been synthesized by two step solution route: firstly, CdO-ZnO heterostructure was prepared by the simple chemical precipitation method and the resulting materials are effectively coupled on PANI by the chemical oxidative polymerization method in acidic medium using APS as oxidant. The resulting respective hybrid materials of CdO, ZnO and PANI matrix were characterized and confirmed (functional groups and crystalline nature) by FTIR, RAMAN and XRD analysis. From the HR-SEM analysis, hybrid materials of CdO-ZnO/PANI matrix has agglomerated hexagonal structure was derived from the granular structure of PANI. Thermo gravimetric analysis showed that CZP hybrid composite has higher thermal stability than ZnO-PANI and PANI matrix. Surface area and pore volume of the hybrid heterostructure obtained to be 54.52m2/g and 0.14cm3/g respectively. The electrical properties of CdO-ZnO particles intercalated on PANI matrix are evaluated in three different electrolyte solutions. In the sense, 1MH2SO4 electrolyte solution exhibits better current response than the other electrolyte solution. From the results shows that the hybrid hetero structure of (CZP) exhibited better thermal and electrochemical performances than ZnO-PANI hybrid and the capacitance retention showing 72.6% after 500 cycles at a current density of 0.5mAg−1, thus the electrode materials possess good specific capacitance and cycle stability. Hence the CZP is a promising material in the field of super capacitor applications.