Control of Particle Size in the Preparation of Colloidal Gold

  title={Control of Particle Size in the Preparation of Colloidal Gold},
  author={Sandra Magalh{\~a}es Saraiva and Jos{\'e} Farias de Oliveira},
  journal={Journal of Dispersion Science and Technology},
  pages={837 - 844}
ABSTRACT The preparation of colloidal gold is a subject of practical interest in many technological fields. It is generally accomplished by reduction of HAuCl4 solution with sodium citrate which is known to be influenced by several factors such as temperature and reactants concentration. In the course of the present investigation, the rate of addition of sodium citrate was observed to play a very important role on the particle size distribution. This aspect has not, to our knowledge, been… 

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