M0.1-BiVO4（M=Fe,Cr,Mo,W）氨气传感器性能的研究

被引：0
|
作者：
杨琳 [1 ]
张毅然 [1 ,2 ]
林赫 [1 ]
机构：
[1] 上海交通大学动力机械与工程教育部重点实验室
[2] 上海交通大学智慧能源创新学院
来源：
传感器与微系统 | 2025年 / 44卷 / 01期
关键词：
M0.1—钒酸铋; 氨气传感器; 煅烧温度; 元素掺杂; 敏感性能;
D O I：
暂无
中图分类号：
TP212 [发送器（变换器）、传感器]; X831 [大气监测];
学科分类号：
080202 ; 0706 ; 070602 ;
摘要：
采用溶液燃烧合成（SCS）法合成了纯钒酸铋（BiVO4）和元素掺杂的M0.1-BiVO4（M=Fe, Cr, Mo, W）,制备基于氧化钇稳定的氧化锆（YSZ）固体电解质和Ag参比电极的混合电位型氨气（NH3）传感器。研究发现，随着工作温度的升高，灵敏度呈现先增大后减小的趋势，分别归因于电化学反应活性的提高和活跃的气固多相催化反应降低了三相界面（TPB）区域的NH3吸附量。传感器在工作温度525℃下表现出最优的灵敏度（-128.092 mV/dec）。Fe掺杂将响应时间从471.6 s降低至95.4 s, Mo掺杂将灵敏度提升至-168.786 mV/dec。极化曲线的结果验证了传感器响应机理符合混合电势理论。
引用
收藏
页码：34 / 38
页数：5
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