Growing micropatterned CNT arrays on aluminum substrates using hot-filament CVD process

Ultrafast growth of carbon nanotubes using microwave irradiation: characterization and its potential applications

“… Synthesis Methods Catalyst and substrate Carbon source Temp. (ºC) Time Flow rate of gases (ml/min) Product Quality References CVD Co/Al substrate CH 4 2100 15 min VACNT (d:9 um) [ 60 ] Ni/Co–TiB 2 C 2 H 2 900 C 2 H 2 ∼100 ml/min CNT-Co@TiB 2 [ 61 ] NiO/HZSM-5 zeolite PP 500–800 35 min Plastic feed rate 80 g/h, Hydrogen gas concentration 72.21 vol.% MWCNTs (15–25 nm) [ 62 ] Co–TiO 2 Hexane 700–800 10–30 min Hexane ∼150 ml/min MWCNTs (d: 15–30 nm) [ 63 ] Cu/CaCO 3 Pyrolysis gas 800 3 h Pyrolysis gas MWCNT [ 64 ] Arc- discharge Ni/Y Graphite rod 30V & 95A Ar ∼1.43 cm 3 /min; 39kPa MWCNT (d:24 nm and L: 690–1680 nm) [ 65 ] Fe Graphite rod 12kPa; 90A Fe2O3/CNT (d:10 nm) [ 66 ] Mixture of Carbon, paraffin & ZnO powder Graphite rod 20 s 500 Torr, 80A ZnO-CNT (3–10 nm) [ 67 ] Si/Ni Ethanol 30 s 4.5A Ni-filled/CNT (d:10 nm & L: 20–150 nm) ...…”

Carbon Nanotube Fabrication at Industrial Scale

“…They found that formation of SWCNT is favored at low C 2 H 2 concentration and low reaction pressure. Yilmaz et al [73] demonstrated the growth of VACNTs in a planar configuration (48 μm tall) and a micropatterned array with 36-μm tall CNTs on Al substrates. They achieved the desired growth by combining conventional microfabrication steps for patterning an array and methane as carbon source for CNT synthesis.…”

Large-area synthesis of vertically aligned carbon nanotubes growth on the aluminum foil via FCCVD method

“…Besides its light weight and high specific surface area, CNTs have superior mechanical, thermal, chemical, and electrical properties, thus attracting attention for many applications in many fields (Yilmaz et al, 2017;Yesilbag et al, 2021). CNTs most important applications are in electronics, optoelectronics, and energy storage applications such as solar cells, sensors, transistors, and batteries, field emission characteristics (Bondavalli et al, 2009;Chachuli et al, 2021;Jo et al, 2003;Jeon et al, 2019;Wang et al, 2003).…”

“…FCCVD method can also be used by dividing it into two stages, in which the catalyst is preheated and then transferred to the reaction area by the carrier gas, and hydrocarbon gas is released in the second stage (Kinoshita et al, 2019). CNTs can be grown on a variety of substrates such as silicon, quartz, aluminum, stainless steel, and copper (Yilmaz et al, 2017). Aluminum (Al) is the most widely used substrate due to its low bulk density, good electrical conductivity, and high flexibility.…”