A HYDROGEN SENSOR-BASED ON THE OPTICAL-GENERATION OF SURFACE-PLASMONS IN A PALLADIUM ALLOY

被引：66

作者：

CHADWICK, B ^{[1
]}

TANN, J ^{[1
]}

BRUNGS, M ^{[1
]}

GAL, M ^{[1
]}

机构：

[1] UNIV NEW S WALES, DEPT CHEM ENGN & IND CHEM, KENSINGTON, NSW 2033, AUSTRALIA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1994年 / 17卷 / 03期

关键词：

D O I：

10.1016/0925-4005(93)00875-Y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The optical generation of surface plasmons in palladium/nickel alloys is used to construct a reliable hydrogen sensor. Absorption of hydrogen by the palladium alloy results in large changes in reflected light intensity (6.6% per 1% change in H-2 concentration) from a reflection off an alloy/glass interface. The palladium alloy is found to be far more suited than pure palladium for use in the sensor, owing to its greater mechanical strength and resistance to poisoning by other chemical species. The sensor performance is not effected by the presence of common atmospheric constituents, such as CO and CH4, or by lack of oxygen in the atmosphere (unlike many catalytic sensors).

引用

页码：215 / 220

页数：6

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