Temperature influence on hydrogen sorption in palladium limited-volume electrodes (Pd-LVE)

被引：25

作者：

Czerwinski, A

Kiersztyn, I

Grden, M

机构：

[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland

[2] Ind Chem Res Inst, PL-01793 Warsaw, Poland

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2003年 / 7卷 / 06期

关键词：

deuterium electrosorption; hydrogen electrosorption; palladium;

D O I：

10.1007/s10008-003-0352-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of temperature on hydrogen and deuterium electrosorption into a palladium LVE (limited-volume electrode) has been investigated. A decrease in hydrogen capacity (H/Pd ratio) with increasing temperature has been observed. Temperature strongly influences the plots of measured H(D)/Pd values vs. potential scan rate. In addition, hydrogen absorption was found to be dependent on the composition of the surrounding electrolyte solution. These results have confirmed the hypothesis that two different mechanisms of hydrogen desorption from the palladium electrode take place, namely electrochemical oxidation and non-electrochemical recombination. Further, the ratio between the rate constants for these two processes has been found to change with temperature.

引用

页码：321 / 326

页数：6

共 36 条

[1] AN ATTEMPT TO DETECT NEUTRON AND GAMMA RADIATIONS IN HEAVY-WATER ELECTROLYSIS WITH A PALLADIUM CATHODE [J].