期刊
EUROPEAN POLYMER JOURNAL
卷 49, 期 11, 页码 3734-3739出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2013.07.032
关键词
Polypyrrole; Thin film; Chemical route; Supercapacitor; Impedance; Charge-discharge
资金
- Council for Scientific and Industrial Research (CSIR), New Delhi (India) [03 (1165)/10/EMR-II]
- Department of Science and Technology (DST) New Delhi through PURSE programme
- Department of Science and Technology (DST) New Delhi through FIST programme
- University Grants Commission (UGC) New Delhi through DSA-I scheme
Present investigation describes the cost-effective, novel and simple chemical synthesis of polypyrrole (PPy) thin films for supercapacitor application. These PPy films are characterized by different techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The XRD pattern reveals the amorphous nature of PPy thin film, which is highly feasible for supercapacitors. Further, FTIR study confirms the formation of PPy. The surface morphological study exhibit the coverage of uniform and smooth morphology on thin film. The electrochemical supercapacitive properties of PPy thin films are evaluated using cyclic voltammetry (CV) in 0.5 M H2SO4 electrolyte, which exhibits the maximum specific capacitance of 329 Fg(-1) at the scan rate of 5 mV s(-1). Additionally, an equivalent series resistance (ESR) of PPy thin films is found to be 1.08 Omega using electrochemical impedance measurement. (C) 2013 Published by Elsevier Ltd.
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