Aqueous, interfacial, and electrochemical polymerization pathways of aniline with thiophene: Nano size materials for supercapacitor

作者：Male Umashankar; Singu Bal Sydulu; Srinivasan Palaniappan^*

来源：Journal of Applied Polymer Science, 2015, 132(22): 42013.

DOI：10.1002/app.42013

• applications
• conducting polymers
• electrochemistry
• morphology

Aniline was mixed with thiophene and oxidized by ammonium persulfate in the presence of sulfuric acid via an aqueous polymerization pathway (PAT-AP). Aqueous polymerization was also carried by sodium lauryl sulfate surfactant, and also by interfacial and electrochemical polymerization pathways. Polymers prepared were characterized by physical, spectral, and electrochemical methods. Nanofibers (30-60 nm diameter) was obtained in the case of aqueous polymerization pathway, whereas interfacial (40-60 nm) and electrochemical polymerization pathways show particulate (500-600 nm) morphology. Polymer samples were used as electrode materials in supercapacitor. Among the four different pathways, PAT-AP nanofibers show higher capacitance of 614 F g(-1) at 1 mV s(-1). The values of specific capacitance, energy, and power densities of PAT-AP were found to be 400 F g(-1), 20 W h kg(-1) and 1200 W kg(-1), respectively, at a current density of 2 A g(-1). The retention capacitance is 78% after completion of 1000 cycles.

• 出版日期2015-6-10