Sensitive materials in gas sensors sometimes need to be activated at a certain high temperature. High working temperature, however, is one of the main obstacles of fabricating gas sensor. In this paper, a hydrogen sulfide gas sensor based on cataluminescence at lower temperature than 150 °C was reported. The sensitive material, Pd-doped Fe₂O₃–Zr₄MnO₁₀, was synthesized via precipitation and impregnation. Pd nanoparticles are uniformly distributed on the surface of Fe₂O₃–Zr₄MnO₁₀ with a size of < 50 nm. The working conditions of cataluminescence of hydrogen sulfide on nano-Pd/Fe₂O₃–Zr₄MnO₁₀ optimized by response surface methodology were analytical wavelength of 467.4 nm, reaction temperature of 128.5 °C and carrier gas velocity of 132.8 ml/min. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi-parameter processes. The results indicated that nano-Pd/Fe₂O₃–Zr₄MnO₁₀ could be a good candidate for fabricating hydrogen sulfide gas sensor.

气体传感器中的敏感材料有时需要在一定的高温下激活。但是，高工作温度是制造气体传感器的主要障碍之一。本文报道了一种在低于150°C的温度下基于催化发光的硫化氢气体传感器。通过沉淀和浸渍合成了Pd掺杂的Fe ₂ O ₃ -Zr ₄ MnO ₁₀敏感材料。Pd纳米颗粒均匀地分布在尺寸小于50 nm的Fe ₂ O ₃ -Zr ₄ MnO ₁₀表面上。纳米Pd / Fe ₂ O ₃上硫化氢催化发光的工作条件通过响应表面法优化的–Zr ₄ MnO _10的分析波长为467.4 nm，反应温度为128.5°C，载气速度为132.8 ml / min。在优化的工作条件下，该方法的灵敏度可以提高4.5％。对于许多多参数过程，优化方法是通用的。结果表明，纳米Pd / Fe ₂ O ₃ -Zr ₄ MnO ₁₀可能是制备硫化氢气体传感器的良好选择。