فصلنامه علمی کارافن

فصلنامه علمی کارافن

ساخت الکترود ابرخازن با استفاده از زیر لایه منعطف نمد کربنی و اکسید کبالت

نوع مقاله : مقاله پژوهشی (کاربردی)

نویسنده
گروه علوم مهندسی، دانشکده علوم مهندسی، دانشگاه ملی مهارت، تهران، ایران.
چکیده
بحران انرژی برای بشر، دستگاه های ذخیره ساز انرژی را تبدیل به مسئله روز پژوهشگران کرده است. ابرخازن ها یکی از ابزار های ذخیره انرژی هستند که توسعه بیشتر آنها به شدت وابسته به الکترود مورد استفاده در قطب های مثبت و منفی می باشد. در دسترس بودن ، ارزان قیمت بودن و کارایی مناسب در ذخیره انرژی از ویژگی مورد انتظار پژوهشگران برای این الکترود ها می باشد.به همین منظور در این پژوهش به سنتز الکترود Co3O4/CF با استفاده از روش هیدروترمال جهت استفاده در الکترود ابرخازن ها پرداخته ایم. از مشخصه یابی های xrd,FESEM,mapping جهت اثبات سنتز و برای بررسی ساختار کریستالی و مورفولوژی نانوذره استفاده کردیم. در ادامه بررسی های,EIS CV.GCD و پایداری ظرفیت ویژه عالی 2719 F/g در کنار پایداری 84 درصدی پس از 2000 چرخه متوالی جریان – ولتاژ را نشان داد. همچنین در مقایسه با پژوهش های مشابه ، Carbon felt می تواند الکترودی کارآمد ، ارزان قیمت و منعطف باشد. اصلاح Carbon felt با استفاده از Co3O4 مقاومت ناشی از انتقال بار و انتقال یون را کاهش داد و رسانندگی را افزایش داد.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Fabrication of supercapacitor electrode using flexible carbon felt substrate and cobalt oxide

نویسنده English

Rasoul Shemshadi
Department of Engineering Science, Faculty of Engineering Sciences, Technical and Vocational University (TVU), Tehran, Iran.
چکیده English

The energy crisis for mankind has made energy storage devices a daily issue for researchers. Supercapacitors are one of the energy storage tools, the further development of which is highly dependent on the electrode used in the positive and negative poles. Availability, cheapness and good efficiency in energy storage are the expected features of these electrodes. For this purpose, in this research, we have synthesized Co3O4/CF electrode using hydrothermal method for use in supercapacitor electrodes. . We used xrd, FESEM, mapping to prove the synthesis and to check the crystal structure and morphology of the nanoparticle. In further investigations, EIS showed CV.GCD and excellent specific capacity stability of 2719 F/g along with 84% stability after 2000 consecutive current-voltage cycles. Also, compared to similar studies, Carbon felt can be an efficient, cheap and flexible electrode. Modification of carbon felt using Co3O4 reduced the resistance caused by charge transfer and ion transfer and increased the conductivity.

کلیدواژه‌ها English

Supercapacitor
cobalt oxide
carbon felt
electrode
hydrothermal
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دوره 23، شماره 1
فنی و مهندسی
بهار 1405
صفحه 672-683

  • تاریخ دریافت 02 آبان 1403
  • تاریخ بازنگری 02 آذر 1403
  • تاریخ پذیرش 28 مهر 1404