Ezzat, D., Youssif, M., Elhaes, H., El-Nahass, M. (2021). ICMMS-2: Dielectric Relaxation Behaviour and AC Electrical Conductivity of Cellulose Acetate-Molybdenum Trioxide Nanoparticle Blended Film. Egyptian Journal of Chemistry, 64(3), 1125-1132. doi: 10.21608/ejchem.2021.55850.3181
Dina Ezzat; Mortada Youssif; Hanan Elhaes; Mahmoud El-Nahass. "ICMMS-2: Dielectric Relaxation Behaviour and AC Electrical Conductivity of Cellulose Acetate-Molybdenum Trioxide Nanoparticle Blended Film". Egyptian Journal of Chemistry, 64, 3, 2021, 1125-1132. doi: 10.21608/ejchem.2021.55850.3181
Ezzat, D., Youssif, M., Elhaes, H., El-Nahass, M. (2021). 'ICMMS-2: Dielectric Relaxation Behaviour and AC Electrical Conductivity of Cellulose Acetate-Molybdenum Trioxide Nanoparticle Blended Film', Egyptian Journal of Chemistry, 64(3), pp. 1125-1132. doi: 10.21608/ejchem.2021.55850.3181
Ezzat, D., Youssif, M., Elhaes, H., El-Nahass, M. ICMMS-2: Dielectric Relaxation Behaviour and AC Electrical Conductivity of Cellulose Acetate-Molybdenum Trioxide Nanoparticle Blended Film. Egyptian Journal of Chemistry, 2021; 64(3): 1125-1132. doi: 10.21608/ejchem.2021.55850.3181
ICMMS-2: Dielectric Relaxation Behaviour and AC Electrical Conductivity of Cellulose Acetate-Molybdenum Trioxide Nanoparticle Blended Film
1Physics Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, 11757 Cairo, Egypt
2Physics Department, Faculty of Science at New Damietta, Damietta University, New Damietta 34517, Egypt
3Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt
Receive Date: 30 December 2020,
Accept Date: 15 January 2021
Abstract
Cellulose acetate (CA) and CA blended with molybdenum trioxide MoO3 nanoparticle at concentration of (0.0, 0.25, 0.5& 1.0 wt. %) prepared by casting method. Ac conductivity and dielectric properties were studied. Our results indicated that the conduction mechanism of CA and CA blended with different concentration of MoO3 nanoparticle is controlled by the correlation barrier hopping (CBH) model. The ac conductivity was observed to increase by adding MoO3 nanoparticle which explained by the network formed as the nanoparticle gets closer to each other as the concentration increase. The maximum barrier height was calculated and found to decrease by increasing MoO3 nanoparticle from 0.15 t0 0.12 eV. The analysis of the dielectric constant and dielectric loss suggested that their behavior can be explained by Maxwell–Wagner–Sillar type polarization at high frequency. At low frequency the polarization is high as a result of interfacial polarization. Arrhenius equation was used to calculate the activation energy of relaxation which found to decrease by increasing MoO3 nanoparticle.
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