一种以Co3O4-Li2CO3为敏感电极的NASICON基CO2传感器及制备方法
By incorporating Co3O4 into the Li2CO3 sensitive electrode and combining it with the NASICON substrate layer and reference electrode, the sensor structure was optimized, solving the problems of high cost and low sensitivity of existing CO2 sensors, and achieving efficient and stable CO2 detection.
CN119118711BActive Publication Date: 2026-07-17JILIN UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JILIN UNIVERSITY
- Filing Date
- 2024-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing CO2 sensors suffer from high manufacturing costs, are greatly affected by the environment, and have low sensitivity due to solid electrolyte sensors.
Method used
A sensor was fabricated using Co3O4-modified Li2CO3 as the sensitive electrode, combined with a NASICON substrate layer and a reference electrode, and fabricated by spin coating and sintering processes. The sensor structure was optimized to improve CO2 response performance.
Benefits of technology
It improves the sensor's response performance and selectivity, exhibits good linearity and stability, has a short response time, and demonstrates excellent CO2 detection capability within a suitable operating temperature range.
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Abstract
一种以Co3O4‑Li2CO3为敏感电极的NASICON基CO2传感器及制备方法，属于固体电解质型气体传感器技术领域。由Al2O3陶瓷管、NASICON基体层、参考电极和敏感电极组成；NASICON基体层均匀地涂覆在Al2O3陶瓷管的外表面，参考电极和敏感电极位于NASICON基体层外表面的两端，在陶瓷管内部穿有镍镉加热线圈为传感器提供适宜的工作温度；敏感电极材料为Co3O4修饰的Li2CO3，其中Co3O4的质量分数为5～20％，实验发现Co3O4修饰的Li2CO3有效地改善了传感器的响应性能，且10％wt Co3O4修饰的Li2CO3传感器具有最佳的响应特性。
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