Thermal Stability and Electrical Conductivity of Graphite Nanosheets/Polyaniline Composites

Abstract:

Composites of graphite nanosheets (GNS) fillers in a polyaniline (PANI) matrix doped with dodecylbenzene sulfonic acid were synthesized by polymerization with the aid of sonication. The resulting GNS/PANI composites were characterized by scanning and trans-mission electron microscopy, Fourier transform infrared spectroscopy, X-ray photo-electron spectroscopy, thermogravimetry and electrical conductivity. The results showed that the GNS play an important role in the improvement of thermal stability and electrical conductivity of the composites. Especially, followed the change of GNS contents of the composites, the results of the thermal stability analysis and electrical conductivity analysis got the same variation trend. When the GNS contents for PANI reached 5 wt% in the composites, the best thermal stability and the maximum value of electrical conductivity (6.48 S·cm^-1) were obtained.

• Periodical: Advanced Materials Research (Volume 1053)
• Pages: 283-289
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1053.283
• Online since: October 2014
• Authors: Ying Xia Ma, Cui Ping Lu, Ru Juan Wang, Xue Yan Du
• Keywords: Electrical Conductivity, Graphite Nanosheets, Polyaniline, Thermal Stability

References

[1] B. Sambhu, K. Dipak, K. S. Nikhil, H. L. Joong, Progress in preparation, processing and applications of polyaniline, Prog Polym Sci. 34 (2009) 783-810.

[2] Y. G Wang, H. Q. Li, Y. Y Xia, Ordered whisker like polyaniline grown on the surface of mesoporous carbon and its electrochemical capacitance performance, Adv Mater. 18(19) (2006) 2619-2623.

DOI: 10.1002/adma.200600445

[3] X. Chen, L. C. Li, S. Y. Jin, B. Q. Zhang, H. S. Qian, G. X. Tong, Expanded graphite/polyaniline electrical conducting composites: Synthesis, conductive and dielectric properties, Mater Lett. 64 (2010) 1313-1315.

DOI: 10.1016/j.matlet.2010.03.018

[4] R. Sengupta, M. Bhattacharya, S. Bandyopadhyay, A. K. Bhowmick, A review on the mechanical and electrical properties of graphite and modified graphite reinforced polymer composites, Prog Polym Sci. 36 (2011) 638-670.

DOI: 10.1016/j.progpolymsci.2010.11.003

[5] J. R. Potts, D. R. Dreyer, C. W. Bielawski, R. S. Ruoff, Graphene-based polymer nanocomposites, Polymer. 52 (2011) 5-25.

DOI: 10.1016/j.polymer.2010.11.042

[6] L. Gong, I. A. Kinloch, R. J. Young, I. Riaz, R. Jalil, K. S. Novoselov, Interfacial stress transfer in a graphene monolayer nanocomposite, Adv Mater. 22 (2010) 2694-2697.

DOI: 10.1002/adma.200904264

[7] J. Yan, T. Wei, Z. J. Fan, W. Z. Qian, M. L. Zhang, X. D. Shen, et al., Preparation of graphene nanosheet/carbon nanotube/polyaniline composite as electrode material for supercapacitors, J Power Sources. 195 (2010) 3041-3045.

DOI: 10.1016/j.jpowsour.2009.11.028

[8] J. Yan, T. Wei, B. Shao, Z. J. Fan, W. Z. Qian, M. L. Zhang, et al., Preparation of a graphene nanosheet/polyaniline composite with high specific capacitance, Carbon. 48 (2010) 487-493.

DOI: 10.1016/j.carbon.2009.09.066

[9] X. J. Lu, H. Dou, S. D. Yang, L. Hao, L. J. Zhang, L. F. Shen, et al., Fabrication and electrochemical capacitance of hierarchical graphene/polyaniline/carbon nanotube ternary composite film, Electrochim Acta. 56 (2011) 9224-9232.

DOI: 10.1016/j.electacta.2011.07.142

[10] Y. X. Ma, Y. F. Li, G. H. Zhao, L. Q. Yang , J. Z. Wang, X. Shan, et al., Preparation and characterization of graphite nanosheets decorated with Fe3O4 nanoparticles used in the immobilization of glucoamylase, Carbon. 50(8) (2012) 2976-2986.

DOI: 10.1016/j.carbon.2012.02.080

[11] M. G. Han, S. K. Cho, S. G. Oh, S. S. Im, Preparation and characterization of polyaniline nanoparticles synthesized from DBSA micellar solution, Synthetic Met. 126 (2002) 53-60.

DOI: 10.1016/s0379-6779(01)00494-5

[12] N. T. Tung, T. V. Khai, H. Lee, D. Sohn, The effects of dopant on morphology formation in polyaniline graphite nanoplatelet composite, Synthetic Met. 161 (2011) 177-182.

DOI: 10.1016/j.synthmet.2010.11.018