Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite
Darwish, A., Ghoniem, A., Hassaan, M., El-Said Shehata, O., Turky, G. (2019). Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite. EKB Journal Management System, 62(Special Issue (Part 1) Innovation in Chemistry), 251-265. doi: 10.21608/ejchem.2019.13194.1821
Abdelfatah Darwish; Ahmed Ghoniem; Mohamed Yousry Hassaan; Omnia El-Said Shehata; Gamal Turky. "Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite". EKB Journal Management System, 62, Special Issue (Part 1) Innovation in Chemistry, 2019, 251-265. doi: 10.21608/ejchem.2019.13194.1821
Darwish, A., Ghoniem, A., Hassaan, M., El-Said Shehata, O., Turky, G. (2019). 'Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite', EKB Journal Management System, 62(Special Issue (Part 1) Innovation in Chemistry), pp. 251-265. doi: 10.21608/ejchem.2019.13194.1821
Darwish, A., Ghoniem, A., Hassaan, M., El-Said Shehata, O., Turky, G. Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite. EKB Journal Management System, 2019; 62(Special Issue (Part 1) Innovation in Chemistry): 251-265. doi: 10.21608/ejchem.2019.13194.1821

Synthesis and Characterization of Polyaniline/Mn3O4/Reduced Graphene Oxide Nanocomposite

Egyptian Journal of Chemistry
Article 19, Volume 62, Special Issue (Part 1) Innovation in Chemistry, December 2019, Page 251-265  XML PDF (2.36 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.13194.1821
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Authors
Abdelfatah Darwish email orcid 1; Ahmed Ghoniemorcid 2; Mohamed Yousry Hassaan3; Omnia El-Said Shehataorcid 4; Gamal Turkyorcid 5
1Microwave Physics& Dielectrics Department, National Research Centre (NRC)-33 El BohouthSt.(former ElTarirSt.)- Dokki, 12622-Giza, Egypt
2Department of microwave Physics and Dielectrics, National Research Centre, Dokki, Giza, P.O. 12622, Egypt.
3Physics Division, Faculty of Science, El-azhar University, Nasr city, P.O. 11751 Cairo, Egypt
4Department of Physical chemistry, National Research Centre, Dokki, Giza, P.O. 12622, Egypt
5Department of microwave Physics and Dielectrics, National Research Centre, Dokki, Giza, P.O. 12622, Egypt
Abstract
The present work is concerned with the synthesis and studying the electrical and dielectric properties of Polyaniline (PANI)/Mn3O4/Reduced Graphene Oxide (RGO) nanocomposites using the Broadband Dielectric Spectroscopy technique. Polyaniline/Mn3O4 and polyaniline/Mn3O4/RGO nanocomposites were prepared using in-situ polymerization. To investigate the structural and morphology of the prepared samples, XRD, FTIR, HRTEM and SEM techniques were used. XRD results of pure Mn3O4 and PANI showed that PANI has crystallinity to some extent and the formation of Mn3O4 as a major phase with crystallite size ~20 nm is obtained. In case of nanocomposite samples, PANI/Mn3O4 and PANI /Mn3O4/RGO revealed a slight disappearance of the characteristic peaks of Mn3O4, which may be attributed to the covering of Mn3O4 surface by PANI. FTIR analysis of the nanocomposite samples indicated that the characteristic absorption peaks are shifted to higher wavenumbers compared with that of pure PANI confirming the interaction between PANI, graphene and Mn3O4. The morphological study of the samples revealed a porous surface of micro aggregates of Mn3O4 and PANI enveloped by RGO sheets and showed the distribution of Mn3O4 nanoparticle and PANI nanofibers on and between the thin sheets of RGO. The value of dc conductivity is rather high, and the prepared nanocomposites could be considered as synthetic metals from the conductivity point of view of such plastic electrode materials.
Keywords
Polyaniline; Manganese oxide; Reduced Graphene oxide; Nanocomposites; electrical conductivity
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