Deposition of Copper Nanoparticles on 2D Graphene NanoPlatelets via Cementation Process Thesis

thesis or dissertation chair

fiu authors

  • Fontoura, Luiza Da

abstract

  • The main goal of this thesis is to deposit metal particles on the surface of 2D nanoplatelets using a controlled cementation process. As a proof of concept, copper (Cu) and Graphene Nanoplatelets (GNP) were chosen as the representative metal and 2D nanoplatelets, respectively. Specific goals of this study include depositing nanometer scale Cu particles on the surface of GNP at a low concentration (approximately 5 vol.%) while maintaining clustering and impurities at a minimum. Parametric studies were done to attain these goals by investigating various metallic reducer types and morphologies, GNP surface activation process, acid volume % and copper (II) sulfate concentrations. Optimal conditions were obtained with Mg ribbon as a reducer, 3 minutes of activation, 1 vol.% of acetic acid and 0.01 M CuSO4. The GNP-Cu powder synthesized in this work is a precursor material to be consolidated via spark plasma sintering (SPS) to make a nacre-like, layered structure for future studies.

publication date

  • March 21, 2017

keywords

  • 2D materials
  • cementation process
  • copper nanoparticles
  • graphene nanoplatelets
  • nacre
  • parametric study
  • single displacement reaction
  • spark plasma sintering

Digital Object Identifier (DOI)