The detection of CO₂ has applications for both industrial and domestic use due to its high exposure effects on the human health. Conductivity sensors on the other hand, present a cost-effective approach that can be successfully utilized for the detection of CO₂. However, the integration of metal oxide based nanoparticles layers for conducometric sensing is complicated and requires improvement in the layer quality to achieve effective and stable gas sensing properties. Addressing this challenge, we present in this work, p-type semiconducting CuO nanoparticles as a CO₂ gas sensitive material and introduce a combination of organic binder and peroxide such as ZnO₂ for improved gas sensitive layer quality. The addition of ZnO₂ to CuO nanoparticles enables the layers annealing at 300 °C which makes the preparation method compatible to silicon based gas sensing devices. For the characterization of layers, X-ray diffraction, scanning electron microscopy, thermogravimetric analysis and Fourier transform infrared measurements are employed. The CO₂ gas sensing measurements show a reversible change in resistance suggesting hybrid nanoparticles layers as an efficient gas sensitive material. The measurements performed at different humidity levels for CuO-ZnO₂ (10:1) layer indicate different sensing mechanism for dry conditions in comparison to the measurements performed under humid atmosphere. The Lewis acid-base reaction between oxide oxygen and CO₂ has been proposed as sensing mechanism for the measurements in dry air, whereas the formation of surface barriers between nano-grains due to the reaction with CO₂ has been suggested for the CO₂ response under humid conditions.

由于其对人体健康的高暴露效应，CO ₂的检测在工业和家庭应用中均得到应用。另一方面，电导率传感器提出了一种经济有效的方法，可以成功地用于检测CO ₂。然而，用于电导率感测的基于金属氧化物的纳米颗粒层的集成是复杂的，并且需要改善层质量以实现有效和稳定的气体感测特性。为了应对这一挑战，我们在这项工作中提出了将p型半导体CuO纳米颗粒用作CO ₂气体敏感材料，并介绍了有机粘合剂和过氧化物（例如ZnO _{2）的组合}改善气敏层质量。向ZnO纳米颗粒中添加ZnO ₂可使层在300°C下退火，从而使该制备方法与基于硅的气体传感设备兼容。为了表征层，采用X射线衍射，扫描电子显微镜，热重分析和傅里叶变换红外测量。CO ₂气敏测量显示电阻可逆变化，表明杂化纳米颗粒层是一种有效的气敏材料。对CuO-ZnO ₂在不同湿度下进行的测量（10：1）层表示与潮湿环境下进行的测量相比，干燥条件下的传感机制不同。氧化物氧和CO ₂之间的路易斯酸碱反应已被提议作为在干燥空气中进行测量的传感机制，而对于CO ₂响应则建议由于与CO ₂反应而在纳米颗粒之间形成表面势垒。在潮湿的条件下。