Effect of Carrier Gas on the Growth and Characteristics of Spin-Capable Multiwalled Carbon Nanotubes

Abstract

Multiwalled carbon nanotube (MWCNT) sheets that can be spun directly from a spin-capable MWCNT forest promise novel applications that utilize the unique and outstanding characteristics of this material. The growth of spin-capable MWCNT forests will be achieved through the understanding of the important factors affecting the forest growth, since the precise conditions necessary for effective spin-capability are extremely sensitive. In this paper, we discuss the effect of carrier gas, the initial catalyst thickness, and the roles of the hydrogen. These factors were investigated in order to assess and understand these critical parameters and thereby develop a repeatable and reliable spin-capable MWCNT growth process.Index Terms-Carrier gas, catalyst, spin-capable multiwalled carbon nanotube (MWCNT).

Fast-Response Room Temperature Hydrogen Gas Sensors Using Platinum-Coated Spin-Capable Carbon Nanotubes

“…Our previous experiments produced transparent conductive CNT sheets by using a simple CNT spinning method. − A 5–6-nm-thick iron film was deposited on a 330-μm-thick p-type silicon wafer using electrobeam (e-beam) evaporation. The thickness was monitored by a quartz-crystal sensor fixed inside the e-beam evaporation chamber.…”

On the Influences of Carrier Gas Type and Flow Rate on CVD Synthesis of CNTs from Postconsumer Polyethylene

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