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Electrodeposition of pyrrole and 3-(4-tert-butylphenyl)thiophene copolymer for supercapacitor applications

Journal Article


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Abstract


  • The electropolymerization of pyrrole (Py), 3-(4-tert-butylphenyl)thiophene (TPT) monomer or the mixed Py and TPT monomers on stainless steel mesh substrate were performed in 1 M LiClO4/acetonitrile solution. A much lower potential of 0.75 V was required for the co-electropolymerization of Py and TPT, in sharp contrast to that of 1.20 V for poly(3-(4-tert-butylphenyl)thiophene) (PTPT) formation. The resultant homopolymers and copolymer were characterized with FESEM and FTIR, and assembled into supercapacitors to investigate their electrochemical performances. The copolymer electrode delivered the highest specific capacitance of 291 F g−1 at a scan rate of 5 mV s−1, in comparison with that of 216 and 26 F g−1 for PPy and PTPT, respectively. This copolymer also exhibited a greatly improved cycling stability – only 9% of capacitance decrease was observed after 1000 charging–discharging cycles at a current density of 5 A g−1, while the capacitance losses for PPy and PTPT were 16% and 60%, respectively.

Publication Date


  • 2012

Citation


  • Yue, B., Wang, C., Wagner, P., Yang, Y., Ding, X., Officer, D. L. & Wallace, G. G. (2012). Electrodeposition of pyrrole and 3-(4-tert-butylphenyl)thiophene copolymer for supercapacitor applications. Synthetic Metals, 162 (24), 2216-2221.

Scopus Eid


  • 2-s2.0-84870718705

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1392&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/380

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 2216

End Page


  • 2221

Volume


  • 162

Issue


  • 24

Place Of Publication


  • Switzerland

Abstract


  • The electropolymerization of pyrrole (Py), 3-(4-tert-butylphenyl)thiophene (TPT) monomer or the mixed Py and TPT monomers on stainless steel mesh substrate were performed in 1 M LiClO4/acetonitrile solution. A much lower potential of 0.75 V was required for the co-electropolymerization of Py and TPT, in sharp contrast to that of 1.20 V for poly(3-(4-tert-butylphenyl)thiophene) (PTPT) formation. The resultant homopolymers and copolymer were characterized with FESEM and FTIR, and assembled into supercapacitors to investigate their electrochemical performances. The copolymer electrode delivered the highest specific capacitance of 291 F g−1 at a scan rate of 5 mV s−1, in comparison with that of 216 and 26 F g−1 for PPy and PTPT, respectively. This copolymer also exhibited a greatly improved cycling stability – only 9% of capacitance decrease was observed after 1000 charging–discharging cycles at a current density of 5 A g−1, while the capacitance losses for PPy and PTPT were 16% and 60%, respectively.

Publication Date


  • 2012

Citation


  • Yue, B., Wang, C., Wagner, P., Yang, Y., Ding, X., Officer, D. L. & Wallace, G. G. (2012). Electrodeposition of pyrrole and 3-(4-tert-butylphenyl)thiophene copolymer for supercapacitor applications. Synthetic Metals, 162 (24), 2216-2221.

Scopus Eid


  • 2-s2.0-84870718705

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1392&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/380

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 2216

End Page


  • 2221

Volume


  • 162

Issue


  • 24

Place Of Publication


  • Switzerland