The electrolytic codeposition of silica and titania modified silica with zinc

被引:32
作者
Aslanidis, D
Fransaer, J
Celis, JP
机构
[1] Dept. of Metall. and Mat. Eng., Katholieke Universiteit. Leuven
关键词
D O I
10.1149/1.1837817
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
This paper describes the electrolytic codeposition of pure and titania modified spherical silica particles with zinc from zinc sulfate electrolytes on a rotating disk electrode. The adsorption of zinc ions onto silica and the morphology of composite zinc-silica coatings as a function of the pH of the plating solution were investigated. It was found that the adsorption of zinc ions onto silica, the codeposition of silica, and the formation of hydroxides increase with pH. Titania modified silica particles were found to codeposit at low pH. Their incorporation In zinc from low pH electrolytes is explained based on an electrode blocking effect by the adsorbed particles leading to a local pH increase in the vicinity of the cathode. This leads to the formation of zinc hydroxides which causes silica particles to be codeposited with zinc even from plating solutions of low bulk pH.
引用
收藏
页码:2352 / 2357
页数:6
相关论文
共 23 条
  • [1] ABE M, 1990, ZINC-BASED STEEL COATING SYSTEMS : METALLURGY AND PERFORMANCE, P171
  • [2] ASLANIDIS D, UNPUB J AM CERAM SOC
  • [3] BALDWIN KL, 1994, ISFEC 94, P113
  • [4] Bhagwat M. J., 1983, T I MET FINISH, V61, P72
  • [5] KINETICS OF DEPOSITION OF ALUMINA PARTICLES FROM COPPER-SULFATE PLATING BATHS
    CELIS, JP
    ROOS, JR
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (10) : 1508 - 1511
  • [6] CELIS JP, 1987, THIS J, V134, P1401
  • [7] INSITU SURFACE PH MEASUREMENT DURING ELECTROLYSIS USING A ROTATING PH ELECTRODE
    DELIGIANNI, H
    ROMANKIW, LT
    [J]. IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1993, 37 (02) : 85 - 95
  • [8] ANALYSIS OF THE ELECTROLYTIC CODEPOSITION OF NON-BROWNIAN PARTICLES WITH METALS
    FRANSAER, J
    CELIS, JP
    ROOS, JR
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (02) : 413 - 425
  • [9] FRANSAER J, 1994, THESIS KATHLIEKE U L
  • [10] FRANSAER J, 1991, CHEM ENG SCI, V4, P1194