التفاصيل البيبلوغرافية
| العنوان: |
Composites Based on Polyaniline and Activated IR-Pyrolyzed Polyacrylonitrile As Promising Supercapacitor Electrode Materials. |
| المؤلفون: |
Abalyaeva, V. V., Nikolaeva, G. V., Efimov, M. N., Efimov, O. N., Dremova, N. N., Karpacheva, G. P., Muratov, D. G. |
| المصدر: |
Russian Journal of Applied Chemistry; 2020, Vol. 93 Issue 11, p1667-1674, 8p |
| مصطلحات موضوعية: |
SUPERCAPACITOR electrodes, COMPOSITE coating, POLYANILINES, POLYACRYLONITRILES, FORMIC acid, SULFURIC acid, ELECTRIC capacity, SUPERCAPACITORS |
| مستخلص: |
A method has been developed for synthesis of a composite coating based on polyaniline by introducing dispersed IR-pyrolyzed polyacrylonitrile, activated by alkaline treatment, into a polymer matrix. The coating is applied from a suspension in formic acid onto a graphite foil that has been previously subjected to anodic etching to improve the wettability with an electrolyte. The produced composite electrodes for sulfuric acid supercapacitors demonstrate high stability during long-term cycling. The specific electrochemical capacitance was 0.89 F cm–2, which is more than 2 times higher than that for an electrode with a polyaniline coating (0.41 F cm–2) tested under the same conditions. The main contribution to the increase in the total capacitance is made by the double-layer capacitance due to the rise in the active electrode surface. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |