کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6605251 | 1424099 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superior capacitive properties of polyaniline produced by a one-pot peroxidase/H2O2-triggered polymerization of aniline in the presence of AOT vesicles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Superior capacitive properties of polyaniline produced by a one-pot peroxidase/H2O2-triggered polymerization of aniline in the presence of AOT vesicles Superior capacitive properties of polyaniline produced by a one-pot peroxidase/H2O2-triggered polymerization of aniline in the presence of AOT vesicles](/preview/png/6605251.png)
چکیده انگلیسی
The development of novel electrode materials for electrochemical capacitors requires innovative approaches with an imperative to produce highly active materials while holding to simple and scalable synthetic approaches. For the first time we have addressed capacitances of polyaniline (PANI) obtained by enzymatic polymerization. PANI was synthesized in an aqueous system containing aniline, horseradish peroxidase isoenzyme C (HRPC)/hydrogen peroxide (H2O2) as catalyst/oxidant, and 80-100Â nm-sized vesicles formed from sodium bis(2-ethylhexyl) sulfosuccinate (AOT). The vesicles served as templates to produce PANI in its emeraldine salt (ES) form. Electrochemical properties of the obtained material were investigated using cyclic voltammetry and galvanostatic charge/discharge experiments. Under galvanostatic conditions and the current load of 1Â AÂ gâ1 a specific capacitance of 770Â FÂ gâ1 was measured in 0.5Â MÂ H2SO4 solution. We observed that the presence of AOT vesicles in the reaction mixture is crucial for the synthesized polymer product to exhibit redox activity. The applied mild enzymatic PANI-ES synthesis procedure led to a highly stable and processable PANI-AOT vesicle suspension which can be applied directly for the production of active electrodes without any isolation and purification of the reaction products. We believe that the presented results can open a new perspective in the production of conductive polymers for application in electrochemical capacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 258, 20 December 2017, Pages 834-841
Journal: Electrochimica Acta - Volume 258, 20 December 2017, Pages 834-841
نویسندگان
Igor PaÅ¡ti, Maja MilojeviÄ-RakiÄ, Katja Junker, Danica Bajuk-BogdanoviÄ, Peter Walde, Gordana ÄiriÄ-MarjanoviÄ,