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采用水热法合成了钨酸铁纳米材料,应用XRD和SEM对钨酸铁纳米材料进行了表征和分析,研制了一种基于YSZ的混合电位型FeWO_4/YSZ/Pt氢气传感器.在500℃时,氧气浓度为10%条件下,基于YSZ的钨酸铁传感器对浓度80~960 ppm的H_2有着良好的气敏性能,并对CO,C_3H_8,NO_2这些可能的干扰气体有着优异的选择性,传感器同时具有良好的重复性和一致性.与已有的MnWO_4/YSZ/Pt和CdWO_4/YSZ/Pt氢气传感器对比发现FeWO4/YSZ/Pt氢气传感器性能更佳.
The ferrous tungstate nanomaterials were synthesized by hydrothermal method. The ferrous tungstate nanomaterials were characterized and analyzed by XRD and SEM. A mixed-potential FeWO 4 / YSZ / Pt hydrogen sensor based on YSZ was developed. , And the oxygen concentration of 10%, the YSZ-based ferrous tungstate sensor has good gas sensitivity to H2 at the concentration of 80-960 ppm and has excellent selectivity to the possible interference gases of CO, C_3H_8 and NO_2. The sensor With good repeatability and consistency.Compared with the existing MnWO_4 / YSZ / Pt and CdWO_4 / YSZ / Pt hydrogen sensors, FeWO4 / YSZ / Pt hydrogen sensors showed better performance.