【作者】 全宝富； 何月华； 王彪； 梁喜双； 钟铁钢；

【Author】 QUAN Bao-fu HE Yue-hua WANG Biao LIANG Xi-shuang ZHONG Tie-gang (College of Electronic Science and Engineering,Jilin University,Changchun 130012,China)

【机构】 吉林大学电子科学与工程学院；

【摘要】 采用溶胶凝胶法制备 NASICON 粉体材料,并利用 XRD 和 IR 对制得的材料进行表征。以 NASICON 粉体材料为基体,Li₂CO₃-BaCO₃复合盐为敏感电极制作管式 CO₂气体传感器,并对其灵敏度、选择性和耐水性进行测量。在敏感电极中掺入质量分数为10%的 SiO₂,不仅明显改善器件的耐水性,而且使器件的初始稳定时间从30min 减小到5min。更多还原

【Abstract】 NASICON （Na⁺ superionic conductor） powders were synthesized by sol-gel method. The resulting materials were characterized by means of XRD and IR.The tube-type CO₂ gas sen- sor was fabricated.NASICON paste was coated on Al₂O₃ tube as electric layer and Li₂CO₃-BaCO₃ was used as sensing electrode.The sensitivity,selectivity and humid resistance of the CO₂ gas sensor were investigated.After the sensing electrode was modified with SiO₂ （10%）,the steady time of the sensor could be greatly reduced from 30 min to 5 min and the humid resistance of the sensor were improved.更多还原