Growth of carbon nanotubes on Ohmically heated carbon paper

Multi-walled carbon nanotubes (MWCNTs) have been grown from ethylene on the fibers of carbon paper by Ohmically heating Co-Ni or Fe catalytic sites su pported on the carbon fibers. MWCNTs are mainly tip-grown and have diameter s ranging from 10 to 30 mn, depending on the catalyst used. The MWCNTs adhe re firmly to the carbon paper with which they are in electrical contact. Cy clic voltammetry of the electrode thus formed indicates that MWCNTs behave like a graphitic material. (C) 2001 Elsevier Science B.V. All rights reserv ed.