Symmetric supercapacitor performances of CaCu3Ti4O12 decorated polyaniline nanocomposite
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Symmetric supercapacitor performances of CaCu3Ti4O12 decorated polyaniline nanocomposite
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| Creator |
Padmini, M.
Elumalai, P. Thomas, T. |
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| Subject |
Electrodics and Electrocatalysis
Electrochemical Materials Science |
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| Description |
To explore the possibility of developing an electrode material with better supercapacitor performances, a
composite of polyaniline (PANI) and varying amount of CaCu3Ti4O12 (CCTO) was synthesized using a
simple technique involving in-situ polymerization of aniline using ammonium persulphate as oxidant.
The pristine PANI and the composite were characterized using X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscope
(SEM) equipped with energy dispersive X-ray analysis (EDAX) and transmission electron microscope
(TEM). The electrochemical activities of the PANI/CCTO nanocomposites were examined in 1M H2SO4 in a
three electrode assembly. It turned out that the specific capacity of the PANI can be largely tuned by
making composite with the inorganic filler, CCTO. The composite consisting of just 5 wt % CCTO in PANI
(PC5) exhibited the highest electrochemical activity with excellent stability compared to other compositions as well as the pristine PANI. A symmetric supercapacitor device consisting of the PC5 composite as
both positive and negative electrodes that were fabricated have exhibited energy density of 30 W h kg�1
with an excellent power density of 20 kW kg�1
. Glowing of an LED using the proto-type solid-state
symmetric device was demonstrated
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| Publisher |
Elsevier
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| Date |
2018-09-27
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3249/1/294-2018.pdf
Padmini, M. and Elumalai, P. and Thomas, T. (2018) Symmetric supercapacitor performances of CaCu3Ti4O12 decorated polyaniline nanocomposite. Electrochimica Acta, 292. pp. 558-567. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3249/ |
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