二氧化碳电流传感器的研究

The Study of An Amperometric Sensor For Carbon Dioxide

本文研制了新型二氧化碳电流传感器，监测二氧化碳的浓度在０～１０％，对二氧化碳的选择性优于其他二氧化碳传感器；合成了１，３－二氨基丙烷合铜（Ⅱ）配合物，对其组成、ＩＲ、ＴＧ进行了研究，讨论了配合物的可能结构及其在传感器中的作用机理。

An amperometric sensor for carbondioxide is designed.On the outside surface ofthe sensing electrode is a throttle vaivewhich is a cap with a 1mm wick passingthrough its center. The sensor monitors car-bon dioxide concentrations in the range of 0～10%,The response to carbon dioxide con-tent of the atmosphere is rapid(about 30 s)while the monitored current is linear withcontent of carbon dioxide in the atmosphere.Unlike other amperometric devices for carbon dioxide,there is no interference fromoxygen and a little interference from otheracid gases.Copper(Ⅱ)bis( 1.3-propanedi-amine)sulfate has been synthesized.Thecomplexes have been identified by elementalanalysis,IR and TG analysis. The mecha-nism of action of the complex on the sensorhas been studied by cyclic voltammetry.