Hydrogen adsorption in single-walled and multi-walled carbon nanotubes grown in a hot-wire CVD (Cat-CVD) reactor

Abstract

We have employed hot-wire chemical vapor deposition (HWCVD) for the growth of single- and multi-walled carbon nanotubes (SWCNTs and MWCNTs). The reactor consisted of a quartz tube and two tungsten filaments. Often additional molybdenum wires were incorporated into the system serving as additional heat sources and possibly providing via evaporation an additional gas-phase catalyst. Transmission electron microscopy indicated the presence of both types of CNTs with diameters ranging from ∼ 1-30 nm. Thermal desorption experiments showed the presence of the both physisorbed and chemisorbed hydrogen.

Document Type

Conference Proceeding

DOI

https://doi.org/10.1016/j.tsf.2005.07.189

Keywords

Hot-wire deposition, Hydrogen storage, Nanotubes

Publication Date

4-20-2006

Journal Title

Thin Solid Films

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