Coating method of high-density Ni layer of carbon nano tube

• Main Authors: WANG DUNDONG, XU YINGGE, DAI JIANFENG, LI WEIXUE, SHI GANG, CHEN TIJUN, HAO YUAN, WANG QING, JIN HUI
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2010
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention provides a coating method of a high-density Ni layer of a carbon nano tube, which aims to improve the compactness and the uniformity of the nickel-coating layer of the carbon nano tube. The method comprises the following steps: manufacturing the carbon nano tube by an anode arc plasma method; acidulating and then washing the carbon nano tube with deionized water; standing for 4 hours, collecting supernate, and then repeatedly washing for many times until pH is 7; standing all the collected supernate for 24 hours for precipitation; filtering and drying precipitates; and finally sensitizing, activating, plating and performing heat treatment on the dried precipitates.