GALVANOSTATIC DESORPTION OF HYDROGEN FROM PALLADIUM LAYERS .1. THEORY

被引:17
作者
BUCUR, RV
COVACI, I
机构
[1] Institute of Isotopic and Molecular Technology, R-3400 Cluj-Napoca
关键词
D O I
10.1016/0013-4686(79)87075-9
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The theory of the galvanostatic desorption of hydrogen held in a finite palladium layer (thickness, l ∼ 10-3-10-2 cm), in a thin palladium layer (thickness, λ ∼ 10-6-10-5 cm) and in a composite finite layer of a non-noble metal protected with a thin palladium layer is developed. The diffusion equations are solved by the Laplace transform and their solutions in term of the concentration of dissolved Ni and weakly adsorbed Nw hydrogen are given. Further the Iτ-functions are estimated for small values of the current, which allows the calculation of the characteristic parameters both of the metallic layer and of the partial steps involved, ie the diffusion and the transfer. The transient overpotentials occurring during the electrochemical desorption for a reversible and an irreversible oxidation step are also calculated. © 1979.
引用
收藏
页码:1213 / 1218
页数:6
相关论文
共 15 条
  • [1] DIFFUSION OF HYDROGEN AND DEUTERIUM IN TA, NB, AND V
    BOES, N
    ZUCHNER, H
    [J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1973, 17 (02): : K111 - K114
  • [2] BOTA F, 1974, STUDIA U BABESBOLY P, P61
  • [3] BOTA F, 1972, STUDIA U BABESBOLY P, P91
  • [4] ADSORPTION AND ABSORPTION OF HYDROGEN BY THIN PALLADIUM LAYERS
    BUCUR, RV
    [J]. SURFACE SCIENCE, 1977, 62 (02) : 519 - 535
  • [5] MECHANISM OF HYDROGEN SORPTION BY THIN PALLADIUM LAYERS .1. DESORPTION
    BUCUR, RV
    MECEA, V
    INDREA, E
    [J]. JOURNAL OF THE LESS-COMMON METALS, 1976, 49 (1-2): : 147 - 158
  • [6] KINETICS OF HYDROGEN (DEUTERIUM) SORPTION BY THIN PALLADIUM LAYERS STUDIED WITH A PIEZOELECTRIC QUARTZ CRYSTAL MICROBALANCE
    BUCUR, RV
    MECEA, V
    FLANAGAN, TB
    [J]. SURFACE SCIENCE, 1976, 54 (02) : 477 - 488
  • [7] BUCUR RV, 1962, REV PHYS BUCHAREST, V7, P91
  • [8] BUCUR RV, 1976, JAN INT M HYDR MET B
  • [9] BUCUR RV, 1964, STUD CERC CHIM, V12, P171
  • [10] BUCUR RV, 1979, MAR INT M HYDR MET M