Roll-to-roll synthesis of vertically aligned carbon nanotube electrodes for electrical double layer capacitors
NANO ENERGY, cilt.8, ss.9-16, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 8
- Basım Tarihi: 2014
- Doi Numarası: 10.1016/j.nanoen.2014.05.004
- Dergi Adı: NANO ENERGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.9-16
- Anahtar Kelimeler: Roll-to-roll synthesis, Chemical vapor deposition, Vertically aligned carbon nanotubes, Supercapacitor, Ultracapacitor, GROWTH, ENERGY
- Gazi Üniversitesi Adresli: Hayır
Özet
Research in carbon nanomaterials has seen tremendous growth in recent years; however, technological advances are limited by the lack of continuous and scalable synthesis methods. Here we present a scalable roll-to-roll process for synthesizing vertically-aligned multi-walled carbon nanotubes (VACNTs) on Al foil ribbons which are continuously drawn through a chemical vapor deposition (CVD) reactor operating at ambient pressure and a relatively low growth temperature (600 degrees C). Electrodes comprised of VACNT forests synthesized in this process are directly assembled into supercapacitor cells, which yield high power densities (1270 W/kg) and energy densities (11.5 Wh/kg). These devices exhibit excellent cycle stability with no loss in performance over more than a thousand cycles. (C) 2014 Elsevier Ltd. All rights reserved.