A Comparative Study of Metal Oxides (CaO, CuO and CaO/CuO) Effects on the Morphology and Thermal Stability of PANI Nanofibers

Abstract:

The comparison of the influence of CaO and CuO alone and combined CaO/CuO on the diameter, surface morphology and thermal stability of polyaniline (PANI) nanofibers is reported. The possible incorporation of CaO and CuO in PANI was revealed by both fourier transform infrared spectroscopy (FT-IR) and ultraviolet-visible spectroscopy (UV–vis). It was found that the diameter of PANI nanofibers varied for the addition of CaO and CuO alone compared to their combined use. Field emission scanning electron microscopy (FESEM) showed that the addition of CaO, CuO and CaO/CuO consistently produce composite material in nanofibers structures. This nanofibers shows regular and uniform surface morphology and without secondary growth and agglomeration of the primary nanofibers. Thermogravimetric analysis (TGA) data showed better thermal stability for all composite materials as compared to PANI nanofibers.

• Periodical: Materials Science Forum (Volume 819)
• Pages: 262-267
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.819.262
• Online since: June 2015
• Authors: Mohammad Mizanur Rahman Khan, Wan Ahmad Kamil Mahmood, Yee Keat Wee, Hanis binti Azizan
• Keywords: Metal Oxides, Morphology, PANI Nanofibers, Thermal Stability

References

[1] A. G. MacDiarmid, A novel role for organic polymers, Angew. Chem. Int. Ed. 40, (2001) 2581-2590.

DOI: 10.1002/1521-3773(20010716)40:14<2581::aid-anie2581>3.0.co;2-2

[2] X. W. Li, X. H. Li, N. Dai, G. C. Wang, Z. Wang, Preparation and electrochemical capacitance performances of super-hydrophilic conducting polyaniline, J. Power. Sources. 195, (2010) 5417-5421.

DOI: 10.1016/j.jpowsour.2010.03.034

[3] M. Jiang, S. Zhu, Z. Zhou, A. Zhao, J. Lu, Effect of Ni2+ as a Codopant on the structure, morphology and conductivity of nanostructured polyaniline, J. Appl. Polym. Sci. 121, (2011) 3439-3445.

DOI: 10.1002/app.33867

[4] C. M. Yang, C. Y. Chen, Synthesis, characterisation and properties of polyanilines containing transition metal ions, Synth. Met. 153, (2005) 133.

DOI: 10.1016/j.synthmet.2005.07.136

[5] M. M. Rahman Khan, Y. K. Wee, W. A. K. Mahmood, Effects of CuO on the morphology and conducting properties of PANI nanofibers, Synth. Met. 162, (2012) 1065-1072.

DOI: 10.1016/j.synthmet.2012.07.006

[6] H. Xia, Q. Wang, Ultrasonic Irradiation: A novel approach to prepare conductive polyaniline/nanocrystalline titanium oxide composites, Chem. Mater. 14, (2002) 2158-2165.

DOI: 10.1021/cm0109591

[7] G. L. Teoh, K. Y. Liew, Wan A. K. Mahmood, Preparation of polyaniline-Al2O3 composites nanofibers with controllable conductivity, Mater. Lett. 61, (2007) 4947-4949.

DOI: 10.1016/j.matlet.2007.03.094

[8] N. N. Mallikarjuna, S. K. Manohar, P. V. Kulkarni, A. Venkataraman, T. M. Aminabhavi, Novel high dielectric constant nanocomposites of polyaniline dispersed with γ-Fe2O3 nanoparticles, J. Appl. Polym. Sci, 97, (2005) 1868-1874.

DOI: 10.1002/app.21405

[9] D. B. Mahesh, D. Raghunandan, S. Basavaraj, A. Venkataraman, Preparation and characterization of polyaniline-Co3O4 nanocomposites via interfacial polymerization, Am. J. Mater. Sci., 2, (2012) 39-43.

[10] Y.T. Ravikiran, M.T. Lagare, M. Sairam, N. N. Mallikarjuna, B. Sreedhar, S. Manohar, A.G. MacDiarmid T.M. Aminabhavi, Synthesis, characterization and low frequency AC conduction of polyaniline/niobium pentoxide composites, Synth. Met., 156, (2006).

DOI: 10.1016/j.synthmet.2006.10.002

[11] M. M. Rahman Khan, Y. K. Wee, and W. A. K. Mahmood, Synthesis of PANI-CaO composite nanofibers with controllable diameter and electrical conductivity, Polym. Compos. DOI 10. 1002/pc (2014).

DOI: 10.1002/pc.22950

[12] N. A. Surplice, The electrical conductivity of calcium and strontium oxides, British J. Appl. Phys. 17, (1966) 175-180.

DOI: 10.1088/0508-3443/17/2/303

[13] D. Tsotcheva, T. Tsanov, L. Terlemezyan, S. J. Vassilev, Structural investigations of polyaniline prepared in the presence of dodecylbenzenesulfonic acid, J. Therm. Anal. and Calor. 63, (2001) 133-141.

DOI: 10.1023/a:1010140504579

[14] M. T. Cortes, E. V. Sierra, Effect of synthesis parameters in polyaniline: influence on yield and thermal behavior, Polym. Bullet. 56, (2006) 37-45.

[15] R. Ansari, M. B. Keivani, Polyaniline conducting electroactive polymers: thermal and environmental stability studies, E-J. Chem. 3, (2006) 202-217.

DOI: 10.1155/2006/395391

[16] S. Wang,  Z. Tan,  Y. Li,  L. Sun, T. Zhang, Synthesis, characterization and thermal analysis of polyaniline/ZrO2 composites, Thermichimica Acta. 441, (2006) 191-194.

DOI: 10.1016/j.tca.2005.05.020

[17] A. H. Gemeay, R. G. El-Sharkawy, I. A. Mansour, A. B. Zaki, Preparation and characterization of polyaniline/manganese dioxide composites and their catalytic activity, J. Coll. Interf. Sci. 308, (2007) 385-394.

DOI: 10.1016/j.jcis.2006.12.077