Influence of Cr2O3 nanoparticles on the structural, optical, thermal and electrical properties of PEO/CMC nanocomposites

In the present paper, different concentrations of chromium oxide (Cr2O3) nanoparticles (? 0.6 wt%) were incorporated within PEO/CMC polymer blend to produce nanocomposite films using casting technique. X-ray diffraction was performed on PEO/CMC-Cr2O3 nanocomposites. The main peaks Cr2O3 observed and defined as cubic structure orthorhombic shape. average particle size calculated by Scherer’s equation in range between 50 60 nm. A decrease some IR bands after addition found, which attributed interactions Cr2O3. effect optical properties such absorbance energy gap (Eg) characterized UV–Vis spectroscopy. Eg reduced nanoparticles. AC conductivity (?ac), dielectric constant (??), loss ( $${\varepsilon }^{{^{\prime}}{^{\prime}}}$$ ) modulus $${\text{M}}^{{^{\prime}}}\text{and }{\text{M}}^{{^{\prime}}{^{\prime}}}$$ at frequency 0.1 Hz -7 GHz. increase direct (?dc) indicates resulting free charge density or mobility. values both ?? decreased with increasing frequency. causes formation a charge-transfer complex. Cole–Cole plot $${\text{M}}^{{^{\prime}}}\text{ shows semi-circular shape discuses according non?Debye method.