Preparation of conductive polymer / carbon nano-tube composite mesoporous nano-tube

The invention relates to a method for preparing a conductive macromolecular carbon nano tube/ compound mesoporous nano tube, which comprises the following steps: (1) firstly growing an MnO2 layer on the carbon nano tube, mixing the carbon nano tube and water solution of potassium permanganate of 0.01 to 1 meters, guiding the mixture to react for 1 to 20 hours at a temperature of between 50 and 100 DEG C, and separating the mixture through a filtration method to obtain a compound nano structure MnO2.CNTs of the carbon nano tube coated with manganese dioxide; (2) dispersing the MnO2.CNTs raw material into a solvent, dissolving conductive macromolecular monomer in a solvent of protonic acid, and reacting for 10 minutes to 72 hours, wherein the range of pH value is between 0 and 6.5, the reaction temperature ranges from 0 to 100 DEG C, the organic acid is dodecylbenzene sulfonic acid or perfluorooctane sulfonated, the inorganic acid is sulfuric acid or hydrochloric acid, and the conductive macromolecule is polyaniline, polypyrrole or polythiophene; and (3) guiding an MnO2 template to react, and removing the template spontaneously after the reaction is finished.