IMPEDANCE OF ZEOLITE-BASED GAS SENSORS

被引：39

作者：

KURZWEIL, P

MAUNZ, W

PLOG, C

机构：

[1] Dornier GmbH, Department FO

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1995年 / 25卷 / 1-3期

关键词：

GAS SENSORS; ZEOLITES;

D O I：

10.1016/0925-4005(95)85144-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Changes in conductivity and capacitance of NaY- and NaPtY-zeolites allow concentrations of butane, ammonia and other gases to be determined by zeolite interdigital sensors. By means of impedance spectroscopy, hydrocarbon conversion can be separated from the effect of water, which appears in a different frequency range. NaY-zeolites show a moderate conductivity, which is due to the mobility of sodium and is influenced by the presence of gases adsorbed at the pore surfaces.

引用

页码：653 / 656

页数：4