The synthesis of vertically-aligned carbon nanotubes on an aluminum foil laminated on stainless steel

다국어 초록 (Multilingual Abstract)

Aligned carbon nanotubes (CNTs) were grown on an aluminum foil laminated on a flexible stainless steel (SS) substrate. Lamination was carried out under a pressure of 10MPa with simultaneously heating at 400<SUP>o</SUP>C. The laminated Al foil was spray-coated with an iron chloride catalyst precursor solution and the CNTs were grown using water-assisted chemical vapor deposition at 810<SUP>o</SUP>C. The CNTs grew as vertically aligned forests, approximately 600μm in height, within 600s without crumpling of the Al foil. The Al foil acts as a sacrificial barrier layer to grow the CNTs. The CNTs had 2-30 walls with an inner diameter of 3-8nm. Thermogravimetric and field emission analysis of the CNTs revealed a degradation temperature and turn-on field of 643.5<SUP>o</SUP>C and 0.46V/μm, respectively. Transmission electron microscopy and X-ray photoelectron spectroscopy were used to analyze the Al-SS interface and chemical states. After removing the CNTs, the flexible SS substrate could be cleaned, recoated with Al and reused for CNT growth. Overall, this process is a repeatable and continuous roll-to-roll processable method that can be scaled up for industrial production.