Dissertation > Excellent graduate degree dissertation topics show

Study on Decoration of Multi-Walled Carbon Nanotubes with Metals and Influence on the Wetting with Aluminium Alloy

Author: XuRong
Tutor: ZhangXueXi
School: Harbin Institute of Technology
Course: Materials Science
Keywords: carbon nanotubes sensitization and activation electroless plating Al alloy wetting
CLC: TB383.1
Type: Master's thesis
Year: 2008
Downloads: 134
Quote: 0
Read: Download Dissertation

Abstract


There is a problem between Al alloy and CNTs that Al alloy can not be able to wet the surface of carbon nanotubes（CNTs）. So CNTs should be decorated with other metals and this could improve the wetting between CNTs and Al alloy. Firstly, CNTs was dealed with sulfuric and nitric acid, and then was analyzed by Fourier Transform Infrared Spectroscopy（FTIR）. From this, some active groups such as, carboxyl and hydroxide radical were found on the surface of carbon nanotubes. At the same time, the proportion of the active groups was confirmed by X-ray photoelectron spectroscopy（XPS）. On this base, carbon nanotubes was sensitized, activated and electroless plated.There were two methods to carry out the sensitization and activation procedure,one in nitrogen, another not. During the sensitization procedure, SnCl2 and hydrochloric acid were used. In the activation procedure, PdCl2 and hydrochloric acid were used. The plating quantity and the surface appearances were found difference after analyzing the sensitized and activated carbon nanotubes by XPS.Nickel, copper and silver was decorated onto carbon nanotubes respectively by electroless plating. Different pH and different time was chosed for comparing. TEM was used to analyze the surface appearances and the states of the coatings, X-ray Diffraction（XRD） was used to analyze the components, and analyze the effect between the coating and carbon nanotubes. Electroless plating was carried out successfully, and the uniform thickness was gained. There were Ni and Ni（OH）2 in the nickel coating, Cu and Cu2O in the copper coating and Ag in the silver coating.Through analyzing the effect between the coatings and carbon nanotubes, Sn has some effects with the groups on the surface of carbon nanotubes in the form of Sn2+. Pd and the coating metals have mechanical joints and vanderWaals force with the carbon nanotubes.Carbon nanotubes coated with Ni and Cu are selected for infiltration, because the states of Ni and Cu coating are good. The wetting between carbon nanotubes and Al alloy is studied.

Related Dissertations

  1. The Application of Different Particle Size Peanut Shell Added by Wetting Agent and Nutrient Solution in Cucumber Nursery,S642.2
  2. Carbon Nanotubes Compound Polymer Film Modified Electrode and Its Application for Electroanalytical Chemistry,O657.1
  3. SnO 2 / CNTs composite Controllable Preparation and Gas Sensitivity Study,TB383.1
  4. Synthesis of Platinum-based Composite Catalysts and Their Electrocatalytic Properties for Methanol Oxidation,TM911.4
  5. Theoretical Model of Formation Enthalpy for Ternary Alloy and Its Application in Prediction of Phase Transformation of Aluminum Alloy,TG146.21
  6. Preparation of Electroless Plating on Heat Transfer Surface with Low Surface Free Energy and Study on Their Anti-fouling Property,TK172
  7. Synthesis of Silver Nanoparticles on Modified Multi-walled Carbon Nanotubes and Their Antimicrobial Effects,TB383.1
  8. Chemical Reaction Hysteresis Induced by Capillary Condensation Within the Catalyst Pellets,O643.36
  9. Research on Aqueous Emulsion Releasing Agent for Aluminum Alloy Die Casting,TQ630.7
  10. The Preparation of Metallic Fabrics with PD-Free Activation and Research of Its Properties,TS106
  11. Studies on the Determination of Synthetic Colorants Using Multi-Wall Carbon Nanotubes Film-Based Electrochemical Sensor,TS207.3
  12. Wettability of solder preforms dynamic testing method,TN206
  13. Carbon nanotubes doped polyaniline and its application in gas sensors,TB383.1
  14. Nanotube modified carbon fiber reinforced composite material structure of the capacitor,TB33
  15. Liquid zoom lens EWOD characteristics and field simulation,O439
  16. High thermal conductivity epoxy composites and Research,TB332
  17. Research on the Key Technology of Coated Green Hydrophobic Packaging Cardboard,TB484.1
  18. Application Study on Surface Modification of Polyester Fabric with Monochromatic Excimer UV Radiation at Wavelength of 222nm,TS156
  19. Mg-Al alloys of early aging process of analysis and the first principles and molecular kinetics of,TG156.92
  20. Study of the Effect of Aluminum Powders Activant on Mechanically Deposited Process of Zinc-aluminum Alloy,TG174.44
  21. The Effect of Thermal Stabiliza Tionon Microstructure of Directionall Ysolidified Ti-53at%Al Alloy,TG166.5

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net  Mobile