Electrochemical capacitance of polypyrrole nanowire prepared by using cetyltrimethylammonium bromide (CTAB) as soft template

Autor:	Kuan-Xin He, Quan-Fu Wu, Xiaogang Zhang, Hong-Yu Mi
Rok vydání:	2007
Předmět:	Supercapacitor Materials science Scanning electron microscope Nanowire Analytical chemistry Condensed Matter Physics Polypyrrole Capacitance Dielectric spectroscopy chemistry.chemical_compound chemistry Chemical engineering Bromide General Materials Science Cyclic voltammetry
Zdroj:	Materials Chemistry and Physics. 101:367-371
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2006.06.013
Popis:	Polypyrrole (PPy) nanowires were prepared in high yield by using cetyltrimethylammonium bromide (CTAB) as “soft template” in 0.2 M HCl aqueous solution. From the observation of scanning electron microscopy (SEM) and transmission electron microscopy (TEM), PPy nanowires with a diameter in the range of 30–50 nm was obtained. The electrochemical capacitance of PPy nanowires was characterized by cyclic voltammetry, charge/discharge test and electrochemical impedance spectroscopy (EIS). Compared with conventional PPy, PPy nanowires had the higher specific capacitance and energy density. The capacitor also exhibited the good cycling performance with 1000 cycles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::985dfe3c55c70f77816185f285c4fd21 https://doi.org/10.1016/j.matchemphys.2006.06.013 Zobrazit plný text záznamu Full Text from ScienceDirect