Enerji depolanması için tartarik asit katkılanmış polipirol bazlı süper kapasitör malzemelerinin sentezi

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Thesis Type: Postgraduate

Institution Of The Thesis: Hacettepe Üniversitesi, Fen Bilimleri Enstitüsü, Kimya A.B.D., Turkey

Approval Date: 2013

Thesis Language: Turkish

Student: ERHAN KARACA

Principal Supervisor (For Co-Supervisor Theses): NURAN ÖZÇİÇEK

Open Archive Collection: AVESIS Open Access Collection

Abstract:

In this study, the polypyrrole films as a supercapacitor material were electrochemically synthesized on platinum and stainless steel electrodes in an acetonitrile solution containing pyrrole, tartaric acid and Triton X-100. The polymers were characterized by cyclic voltammetry, FTIR, Raman and EDX methods. Their morphologies were also investigated by scanning electron microscopy. The capacitive properties of resulting coatings were investigated in H2SO4/water solution by using cyclic voltammetry, electrochemical impedance spectroscopy and the galvanostatic charge-discharge tests. It was determined that tartaric acid and Triton X-100 improved the capacitive behavior of polypyrrole coating and their specific capacitance were 379 F g-1 for Pt foil and 367 F g-1 for 316Ti SS. Consequently, the resulting polypyrrole coatings possesed higher energy density than capasitors and higher power density than fuel cells and batteries when compared to their energy and power density obtained from the galvanostatic charge-discharge tests Keywords: Conducting polymer, polypyrrole, tartaric acid, electropolymerization, supercapacitor