基于循环伏安法测量痕量高温氧气的研究
PDF下载 (118)沈伊杰,马 铮,蒋晓晴,李福安,邬杨波,邹 杰.基于循环伏安法测量痕量高温氧气的研究[J].宁波大学学报(理工版),2025,38(3):52-59.DOI:10.20098/j.cnki.1001-5132.2024.1113
SHEN Yijie,MA Zheng,JIANG Xiaoqing,LI Fu’an,WU Yangbo,ZOU Jie.
Research on measuring trace high temperature oxygen concentration based on cyclic voltammetry
[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(3):52-59.DOI:10.20098/j.cnki.1001-5132.2024.1113| Title: | Research on measuring trace high temperature oxygen concentration based on cyclic voltammetry |
| 作者: | <p class="0" style="font-size:medium, white-space:normal, "> 沈伊杰, 马 铮, 蒋晓晴, 李福安, 邬杨波, 邹 杰 |
| Author(s): | <p class="7" style="font-size:medium, white-space:normal, "> SHEN Yijie, MA Zheng, JIANG Xiaoqing, LI Fu’an, WU Yangbo, ZOU Jie |
| 关键词: | 极限电流型氧传感器; 痕量氧浓度; 循环伏安法; 富集  |
| Keywords: | current-limiting oxygen sensor; trace oxygen concentration; cyclic voltammetry; enrichment |
| 分类号: | TP212.2 |
| DOI: | 10.20098/j.cnki.1001-5132.2024.1113 |
| 文献标识码: | A |
| 摘要: | 钇稳定氧化锆(YSZ)基极限电流型氧传感器适用于长时间高温常氧范围测量, 但在痕量氧环境下其输出信号微弱, 难以实现精准测量。为了提高氧传感器检测下限, 实现痕量氧气的测量, 提出基于循环伏安法, 将环境中痕量氧气富集到传感器测试腔室内, 以产生较大的输出信号, 实现在高温下对痕量氧气的测量; 同时研究了该方法中扫描波形、扫描速率以及工作温度对氧气富集效果的影响。结果表明: 基于循环伏安法的反向泵氧富集方法能够有效增强传感器的输出信号, 实现在高温环境下对低至10−4%氧气体积分数的精确测量。 |
| Abstract: | Yttrium-stabilized zirconium oxide (YSZ) based current-limiting oxygen sensor is suitable for high temperature operation and constant oxygen concentration measurement for a long time, but the output signal is weak under low oxygen condition thus making it difficult to achieve accurate measurement. In order to extend its lower detection limit to enable the measurement of trace oxygen, this paper proposes to apply the cyclic voltammetry method to enrich the trace oxygen from the environment into the sensor test chamber to generate a larger output signal, so as to realize the measurement of trace oxygen at high temperatures. Moreover, the impact of the scanning waveform, scanning rate and working temperature on the oxygen enrichment effect is also studied. The results show that the reverse pumping oxygen enrichment method based on cyclic voltammetry can effectively enhance the output signal of the sensor and realize the accurate measurement of 10−4% oxygen in high temperature environment. |
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| 备注/Memo: | 收稿日期: 2024−11−09 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（62471267）; 浙江省基础公益研究计划项目（LGG22F010017）; 宁波市重点研发项目（2022Z093, 2022Z092）; 重庆市自然科学基金（CSTB2023NSCQ-LZX0045） 第一作者: 沈伊杰, 硕士研究生, 主要研究方向: 气体传感器敏感机理及仪器仪表。E-mail: shenyijie86@163.com *通信作者: 邹 杰, 博士/副教授, 主要研究方向: 气体传感器敏感机理及仪器仪表。E-mail: zoujie@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
