MECHANISM FOR EXCHANGE BETWEEN AQUEOUS SOLUTIONS AND DEUTERIUM GAS ON PALLADIUM SURFACES

被引：15

作者：

HOLLECK, GL

FLANAGAN, TB

机构：

[1] Chemistry Department, University of Vermont, Burlington

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1969年 / 73卷 / 02期

关键词：

D O I：

10.1021/j100722a001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The isotopic exchange reactions occurring between D chemisorbed on palladium and solutions of H2O have been investigated. The isotopic content of palladium specimens which had absorbed H and D from D2-stirred solutions was determined by mass spectral analysis. In addition, the electrochemical exchange current was measured during the run by a galvanostatic pulse technique. It was found by comparing the exchange current calculated from the isotopic content of the specimen with the electrochemical exchange current that in very acid solutions an electrochemical exchange mechanism appears to be the only important mode of exchange, whereas, in other pH ranges, an additional exchange mechanism (catalytic) comes into play. © Copyright, 1969, by the American Chemical Society.

引用

页码：285 / &

共 27 条

[1]

Bond GC, 1962, CATALYSIS METALS

[2]

BUTTLAR H, 1963, BER BUNSENGES PHYS C, V67, P650

[3] ABSORPTION OF HYDROGEN BY PALLADIUM/PLATINUM ALLOYS .2. KINETIC STUDIES OF ABSORPTION FROM ACIDIC SOLUTIONS [J].