Flexible supercapacitor electrodes with vertically aligned carbon nanotubes grown on aluminum foils

Dogru I. B., DURUKAN M. B., Turel O., ÜNALAN H. E.

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, cilt.26, sa.3, ss.232-236, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.pnsc.2016.05.011
  • Dergi Adı: PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.232-236
  • Anahtar Kelimeler: Supercapacitor electrodes, Carbon nanotubes, Flexibility, CVD-GROWTH, GRAPHENE, ENERGY, FIBERS, ARRAYS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this work, vertically aligned carbon nanotubes (VACNTs) grown on aluminum foils were used as flexible supercapacitor electrodes. Aluminum foils were used as readily available, cheap and conductive substrates, and VACNTs were grown directly on these foils through chemical vapor deposition (CVD) method. Solution based ultrasonic spray pyrolysis (USP) method was used for the deposition of the CNT catalyst. Direct growth of VACNTs on aluminum foils ruled out both the internal resistance of the supercapacitor electrodes and the charge transfer resistance between the electrode and electrolyte. A specific capacitance of 2.61 mF/cm(2) at a scan rate of 800 mV/s was obtained from the fabricated electrodes, which is further improved through the bending cycles. (C) 2016 Chinese Materials Research Society. Production and hosting by Elsevier B.V.