The effect of cysteine on electrodeposition of gold nanoparticle

Dolati, A ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1016/j.mseb.2011.07.008
  3. Publisher: 2011
  4. Abstract:
  5. The most applications of gold nanoparticles are in the photo-electronical accessories and bio-chemical sensors. Chloride solution with cysteine additive was used as electrolyte in gold nanoparticles electrodeposition. The nucleation and growing mechanism were studied by electrochemical techniques such as cyclic voltammetry and chronoamperometry, in order to obtain a suitable nano structure. The deposition mechanism was determined as instantaneous nucleation and the dimension of particles was controlled in nanometric particle size range. Atomic Force Microscope was used to evaluate the effect of cysteine on the morphology and topography of gold nanoparticles. Finally the catalytic property of gold nanoparticle electrodeposited was studied in KOH solution, where oxygen reduction on the gold nanoparticle surface was eight times greater than that on the conventional gold deposits
  6. Keywords:
  7. Nanoparticle ; Atomic force microscopes ; Bio-chemical sensor ; Catalytic properties ; Chloride solutions ; Cysteine ; Deposition mechanism ; Electrochemical techniques ; Gold Nanoparticles ; KOH solution ; Nanometric particles ; Oxygen Reduction ; Amino acids ; Atomic force microscopy ; Chlorine compounds ; Chronoamperometry ; Cyclic voltammetry ; Electrodeposition ; Electrolytic reduction ; Gold ; Nanoparticles ; Nucleation ; Gold deposits
  8. Source: Materials Science and Engineering B: Solid-State Materials for Advanced Technology ; Volume 176, Issue 16 , 2011 , Pages 1307-1312 ; 09215107 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0921510711003291