Production of nanotubes used in a semiconductor element comprises contacting nanotubes connected as anode with a halide salt solution in contact with a cathode, and passing an electrical current through the solution

摘要

Production of nanotubes comprises: contacting nanotubes connected as anode (104) with a halide salt solution in contact with a cathode (106); and passing an electrical current through the solution via the anode and cathode to induce an oxidative reaction on the tubes. Preferred Features: The anode and the cathode form parts of an electrochemical cell (100) having a salt bridge (101) with an anode side and a cathode side. The electrolyte used is a chloride or bromide. A current density of maximum 10 mA/cm2 is used.