2013/08/12 by Hisashi Sugime, Santiago Esconjauregui, Junwei Yang +5 · 1 citation
Materials Science · #Carbon Nanotubes in Composites #Graphene research and applications #Diamond and Carbon-based Materials Research
paper · doi:10.1063/1.4818619
openalex publication_date 2013/08/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We grow ultra-high mass density carbon nanotube forests at 450 °C on Ti-coated Cu supports using Co-Mo co-catalyst. X-ray photoelectron spectroscopy shows Mo strongly interacts with Ti and Co, suppressing both aggregation and lifting off of Co particles and, thus, promoting the root growth mechanism. The forests average a height of 0.38 μm and a mass density of 1.6 g cm−3. This mass density is the highest reported so far, even at higher temperatures or on insulators. The forests and Cu supports show ohmic conductivity (lowest resistance ∼22 kΩ), suggesting Co-Mo is useful for applications requiring forest growth on conductors.