Electrochemical Capacitive Behaviour of Multiwalled Carbon Nanotubes Modified with Electropolymeric Films of Nickel Tetraaminophthalocyanine

✍ Scribed by Alfred T. Chidembo; Kenneth I. Ozoemena

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 333 KB
• Volume: 22
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.201000290

✦ Synopsis

Abstract

Electrochemical capacitive behaviour of the electropolymeric nickel tetra‐aminophthalocyanine (poly‐NiTAPc) supported on multiwalled carbon nanotube (MWCNT) platform is described. From the data in 1 M H~2~SO~4~, the MWCNT‐poly‐NiTAPc exhibited superior capacitance (112 mF cm^−2^ or 777 F g^−1^). The supercapacitance of the MWCNT‐polyNiTAPc was found to be much better in 1 M H~2~SO~4~ than in 1 M NaOH medium. Impedance data proved that most of the stored energy of the MWCNT‐poly‐NiTAPc could be accessible at high frequency (1.6 kHz). The electrode is capable of undergoing continuous charge‐discharge process for more than a 1000 cycles without any significant deterioration in the stability.