EFFECT OF A POLYETHOXYLATE SURFACTANT ON THE ELECTRODEPOSITION OF TIN

被引:53
作者
ARAGON, A
FIGUEROA, MG
GANA, RE
ZAGAL, JH
机构
[1] CATHOLIC UNIV CHILE,FAC QUIM,DEPT QUIM ANALIT & ELECTROQUIM,CASILLA 306 CORREO 22,SANTIAGO,CHILE
[2] CATHOLIC UNIV CHILE,FAC CIENCIAS,DEPT QUIM,SANTIAGO,CHILE
关键词
Cell Voltage Oscillations - Overpotential - Polyethoxylate Surfactant;
D O I
10.1007/BF01024097
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The electrodeposition of tin in the presence of polyethoxylated additive TX-102 has been investigated in acid medium. The additive causes a substantial increase in the overpotential for the discharge of Sn2+ ions. Below 0.12 g dm-3 the additive has little effect on the quality of the tin deposits. Periodic oscillations in the voltage of the cell are observed, which are associated with the initial growth of whiskers. For higher concentrations of additive, the deposits are smooth and homogeneous, and no growth of whiskers and no voltage oscillations are observed. The effect of TX-102 for concentrations below the CMC has been interpreted in terms of blockage of high energy sites of preferential growth on the tin surface. For additive concentrations above the CMC, micelles are formed. These high molecular weight aggregates also block the surface, hindering the mass transport of Sn2+ through a membrane-like layer that forms on the tin.
引用
收藏
页码:558 / 562
页数:5
相关论文
共 9 条
[1]   CALORIMETRIC STUDY OF NON-IONIC SURFACTANTS - ENTHALPIES AND HEAT-CAPACITY CHANGES FOR MICELLE FORMATION IN WATER OF C8E4 AND TRITON X-100 AND MICELLE SIZE OF C8E4 [J].
ANDERSSON, B ;
OLOFSSON, G .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 :4087-4095
[2]  
ARAGON A, 1988, 18 C LAT QUIM 17 JOR, V2, P529
[3]  
DONOSO B, 1990, THESIS PONTIFICIA U
[4]   EFFECT OF TEMPERATURE ON CRITICAL MICELLE CONCENTRATION [J].
GINN, ME ;
KINNEY, FB ;
HARRIS, JC .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1960, 37 (04) :183-187
[5]   DETERMINATION OF THE CRITICAL MICELLE CONCENTRATION OF SURFACTANTS AND THE PARTITION-COEFFICIENT OF AN ELECTROCHEMICAL PROBE BY USING CYCLIC VOLTAMMETRY [J].
MANDAL, AB ;
NAIR, BU ;
RAMASWAMY, D .
LANGMUIR, 1988, 4 (03) :736-739
[6]   THE ELECTROCHEMISTRY OF TIN .1. EFFECTS OF NONIONIC ADDITION AGENTS ON ELECTRODEPOSITION FROM STANNOUS SULFATE SOLUTIONS [J].
MEIBUHR, S ;
YEAGER, E ;
KOZAWA, A ;
HOVORKA, F .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1963, 110 (03) :190-202
[7]  
NEZU H, 1986, DENKI KAGAKU, V54, P1027
[8]  
OTTEWILL RH, 1984, SURFACTANTS, P15
[9]   MICELLAR STRUCTURE OF NON-IONIC DETERGENTS [J].
SCHICK, MJ ;
EIRICH, FR ;
ATLAS, SM .
JOURNAL OF PHYSICAL CHEMISTRY, 1962, 66 (07) :1326-&