Nanocrystalline Ni-C Electrodeposits Prepared in Electrolytes Containing Supercritical Carbon Dioxide

被引:39
作者
Chung, Sung-Ting [1 ]
Tsai, Wen-Ta [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan
关键词
3-PHASE CATALYTIC-HYDROGENATION; ELECTROPLATING SOLUTION; MECHANICAL-PROPERTIES; NICKEL; FILMS; CO2; EMULSION; PH; TEMPERATURE; SURFACTANTS;
D O I
10.1149/1.3205876
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Electrodeposition of Ni in a Watt's bath at different applied pressures and in the presence of supercritical CO(2) (sc-CO(2)), either with or without surfactant addition, was investigated. The current efficiency was evaluated under constantly applied current density conditions. The crystal structure of the resulting Ni film was characterized by performing X-ray diffraction. The composition of the deposit was analyzed using X-ray photoelectron spectroscopy. Transmission electron microscopy was employed for microstructure analysis. Microhardness of the deposited film was measured to distinguish the role of bath composition. The experimental results showed that carbon-containing nanocrystalline Ni films could be obtained in the bath with the presence of sc-CO(2). A significant increase in microhardness was found for the film electrodeposited in sc-CO(2) fluid, as compared with that formed in plain aqueous electrolyte. The fine grain size and solid solution strengthening caused by carbon were responsible for the increased hardness. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3205876] All rights reserved.
引用
收藏
页码:D457 / D461
页数:5
相关论文
共 22 条
[1]   Material characterization and corrosion performance of nickel electroplated in supercritical CO2 fluid [J].
Chung, Sung-Ting ;
Huang, Hsien-Chung ;
Pan, Szu-Jung ;
Tsai, Wen-Ta ;
Lee, Pee-Yew ;
Yang, Chung-Hsin ;
Wu, Mau-Bin .
CORROSION SCIENCE, 2008, 50 (09) :2614-2619
[2]   Concentrated CO2-in-water emulsions with nonionic polymeric surfactants [J].
da Rocha, SRP ;
Psathas, PA ;
Klein, E ;
Johnston, KP .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 239 (01) :241-253
[3]   Kinetic experiments and modeling of a three-phase catalytic hydrogenation reaction in supercritical CO2 [J].
Devetta, L ;
Giovanzana, A ;
Canu, P ;
Bertucco, A ;
Minder, BJ .
CATALYSIS TODAY, 1999, 48 (1-4) :337-345
[4]   The structure and mechanical properties of thick cobalt electrodeposits [J].
Dille, J ;
Charlier, J ;
Winand, R .
JOURNAL OF MATERIALS SCIENCE, 1997, 32 (10) :2637-2646
[5]   THE DEFORMATION AND AGEING OF MILD STEEL .3. DISCUSSION OF RESULTS [J].
HALL, EO .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B, 1951, 64 (381) :747-753
[6]   Buffering the aqueous phase pH in water-in-CO2 microemulsions [J].
Holmes, JD ;
Ziegler, KJ ;
Audriani, M ;
Lee, CT ;
Bhargava, PA ;
Steytler, DC ;
Johnston, KP .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (27) :5703-5711
[7]   Study on the effect of temperature and pressure on nickel-electroplating characteristics in supercritical CO2 [J].
Kim, MS ;
Kim, JY ;
Kim, CK ;
Kim, NK .
CHEMOSPHERE, 2005, 58 (04) :459-465
[8]   Current efficiency and kinetics of cobalt electrodeposition in acid chloride solutions. Part I: The influence of current density, pH and temperature [J].
Kongstein, O. E. ;
Haarberg, G. M. ;
Thonstad, J. .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2007, 37 (06) :669-674
[9]   Structure and mechanical properties of carbon-nickel and CNx-nickel nanocomposite films [J].
Kovács, GJ ;
Sáfrán, G ;
Geszti, O ;
Ujvári, T ;
Bertóti, I ;
Radnóczi, G .
SURFACE & COATINGS TECHNOLOGY, 2004, 180 :331-334
[10]   X-ray photoelectron spectroscopic study of magnetron sputtered carbon-nickel composite films [J].
Kovacs, Gy. J. ;
Bertoti, I. ;
Radnoczi, G. .
THIN SOLID FILMS, 2008, 516 (21) :7942-7946