中文摘要：

借助X射线衍射和扫描电镜,研究烧结、熔融和承载三种典型Li_2CO_3/YSZ敏感电极制作方法对CO_2传感器性能的影响。结果表明,三种方法均能制备出致密的Li_2CO_3/YSZ敏感电极薄膜,并在实验条件（500℃,CO_2浓度范围（318~576 800）×10~（-6））下对待测气体中的CO_2具有准确的响应;熔融法制作的电极薄膜颗粒较其他两种方法大,且由于电极体系中涉及Li_2ZrO_3和Li_2CO_3的相互转化反应,使得传感器长时间稳定性受到影响。

英文摘要：

By means of XRD analysis and SEM observation,effects of Li2CO3/YSZ electrodes prepared by different methods（sintering,melting,and carrying）on properties of the potentiometric CO2 sensors are studied.The results indicate that all of the three methods can prepare compact Li2 CO3/YSZ electrode films,and sensors made up of them response correctly to the CO2 alterations at 500 ℃ and CO2 concentration range of 318 ～576 800 × 10-6.Melting prepared electrode film exhibits bigger size of particles compared with the other two methods.And due to the conversion reaction between Li2ZrO3 and Li2CO3 in this electrode system,the long term stability of sensors made up of it is affected.