THE MECHANISM OF SILVER(I) OXIDE FORMATION ON POLYCRYSTALLINE SILVER IN ALKALINE-SOLUTION - DETERMINATION OF NUCLEATION AND GROWTH-RATES

被引：51

作者：

ALONSO, C ^{[1
]}

SALVAREZZA, RC ^{[1
]}

VARA, JM ^{[1
]}

ARVIA, AJ ^{[1
]}

机构：

[1] NATL UNIV LA PLATA,INST INVEST FISICOQUIM TEOR & APLICADAS,RA-1900 LA PLATA,ARGENTINA

来源：

ELECTROCHIMICA ACTA | 1990年 / 35卷 / 02期

关键词：

D O I：

10.1016/0013-4686(90)87034-Y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The nucleation and growth of Ag(I) oxide layers on polycrystalline Ag electrodes is studied by potentiodynamic and potentiostatic current transients in 0.1 M NaOH. A model involving the diffusion controlled growth of a basal layer followed by the nucleation and growth of a secondary layer is proposed. Various nucleation parameters are estimated by comparing experimental data with simulated transients, and the results are discussed in terms of the atomistic theory of electrochemical phase formation. The influence of the nucleation parameters on the shape of the current transients is analysed and some controversial results in the literature are explained. © 1990.

引用

页码：489 / 496

页数：8

共 23 条

[1] AMBROSE J, 1974, ELECTROCHIM ACTA, V11, P781
[2] BECERRA JG, 1988, ELECTROCHIM ACTA, V33, P1431
[3] TEXTURE GROWTH AND ORIENTATION OF ANODICALLY FORMED SILVER OXIDES
BRIGGS, GWD
FLEISCHMANN, M
LAX, DJ
THIRSK, HR
[J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1968, 64 (551P): : 3120 - +
[4] DELEVIE R, 1984, ADV ELECTROCH EL ENG, V13, P1
[5] DROGG JM, 1980, J ELECTROANAL CHEM, V115, P225
[6] FLEISCHMANN M, 1963, ADV ELECTROCHEMISTRY, V3, P123
[7] THIN-FILM GROWTH MODES, WETTING AND CLUSTER NUCLEATION
GRABOW, MH
GILMER, GH
[J]. SURFACE SCIENCE, 1988, 194 (03) : 333 - 346
[8] STUDY OF THE INITIAL-STAGES OF ANODIC-OXIDATION OF POLYCRYSTALLINE SILVER IN KOH SOLUTIONS
HEPEL, M
TOMKIEWICZ, M
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1984, 131 (06) : 1288 - 1294
[9] HILLS G, 1974, ELECTROCHIM ACTA, V11, P657
[10] IACOBS J, 1988, J ELECTROANAL CHEM, V247, P135

← 1 2 3 →