• 中文
    • English
  • English 
    • 中文
    • English
  • Login
View Item 
  •   DSpace Home
  • 化学化工学院
  • 化学化工-已发表论文
  • View Item
  •   DSpace Home
  • 化学化工学院
  • 化学化工-已发表论文
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Electrodeposition of monodisperse copper nanoparticles on highly oriented pyrolytic graphite electrode with modulation potential method

Thumbnail
Full Text
Electrodeposition of monodisperse copper nanoparticles on highly oriented pyrolytic graphite electrode with modulation potential method.htm (413bytes)
Date
2005-06
Author
Ling Huang
黄令
Eun-Sung Lee
Kwang-Bum Kim
Collections
  • 化学化工-已发表论文 [14469]
Show full item record
Abstract
Copper nanoparticles with size of 51 nm and R.S.D-dia(.) Of 10% can be obtained by modulation potential electrodeposition: first, a -0.8 V x 120 ms potential step was used to nucleate copper particles on highly oriented pyrolytic graphite (HOPG) electrode surface, where nuclei with a supercritical size were formed, secondly, a 0.082 V x 80 ms strip peak potential (E,) was used to strip smaller metal nuclei partly, at last, a growth potential, -0.28 V was applied to grow the nearly identical size slowly. Mechanism of copper electrodeposition on HOPG electrode from a solution of I MM CUSO4 and 1.0 M H2SO4 has been studied using cyclic voltammogram and chronoamperometry. In copper electrodeposition the charge-transfer step is fast and the rate of growth is controlled by the rate of mass transfer of copper ions to the growing centers. Reduction of Cu(II) ions did not undergo underpotential deposition. The initial deposition kinetics of Cu electrocrystallization corresponds to a model including progressive nucleation and diffusion controlled growth. (c) 2005 Elsevier B.V. All rights reserved.
Citation
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2005,262(1-3);125-131
URI
http://dx.doi.org/doi:10.1016/j.colsurfa.2005.03.023
https://dspace.xmu.edu.cn/handle/2288/11158

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies