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首页> 外文期刊>Nanotechnology >Single CuO nanowires decorated with size-selected Pd nanoparticles for CO sensing in humid atmosphere
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Single CuO nanowires decorated with size-selected Pd nanoparticles for CO sensing in humid atmosphere

机译：装饰有尺寸选择的Pd纳米粒子的单CuO纳米线，用于在潮湿大气中进行CO感测

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摘要

We report on conductometric gas sensors based on single CuO nanowires and compare the carbon monoxide (CO) sensing properties of pristine as well as Pd nanoparticle decorated devices in humid atmosphere. Magnetron sputter inert gas aggregation combined with a quadrupole mass filter for cluster size selection was used for single-step Pd nanoparticle deposition in the soft landing regime. Uniformly dispersed, crystalline Pd nanoparticles with size-selected diameters around 5 nm were deposited on single CuO nanowire devices in a four point configuration. During gas sensing experiments in humid synthetic air, significantly enhanced CO response for CuO nanowires decorated with Pd nanoparticles was observed, which validates that magnetron sputter gas aggregation is very well suited for the realization of nanoparticle-functionalized sensors with improved performance.
机译：我们报告了基于单根CuO纳米线的电导式气体传感器，并比较了原始的一氧化碳（CO）感测特性以及潮湿环境中的Pd纳米颗粒装饰设备。磁控溅射惰性气体聚集与四极质量过滤器相结合，用于团簇尺寸选择，用于在软着陆状态下单步沉积Pd纳米颗粒。将尺寸选择的直径约为5 nm的均匀分散的结晶Pd纳米颗粒以四点配置沉积在单个CuO纳米线器件上。在潮湿的合成空气中进行气敏实验期间，观察到装饰有Pd纳米粒子的CuO纳米线的CO响应显着增强，这证明磁控溅射气体聚集非常适合实现性能提高的纳米粒子功能化传感器。

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