微球
非阻塞I/O
选择性
丙酮
兴奋剂
热液循环
湿度
材料科学
相对湿度
化学工程
纳米技术
分析化学(期刊)
化学
色谱法
光电子学
催化作用
有机化学
气象学
物理
工程类
作者
Man Yang,Jingyuan Lu,Qingji Wang,Hong Zhang,Fang Chen,Jianbo Sun,Jiaqi Yang,Yanfeng Sun,Geyu Lu
标识
DOI:10.1016/j.snb.2020.127965
摘要
Humidity dependence of gas sensors is one of the main obstacles for practical application. Through Ru doping into NiO flower-like microspheres, which are synthesized by a one-step hydrothermal route, the gas sensors exhibit high stability to humidity changes. The sensors based on 0.5 at% Ru-doped NiO have almost the same responses to 100 ppm acetone at 200 °C when the relative humidity ranges from 15 % to 90 %. At the same time, they possess the highest response (∼12 to 100 ppm acetone), which is about 9 times higher than that based on pure NiO. In addition, the sensors based on 0.5 at% Ru doped NiO sample show good selectivity and good long-term stability. Gas sensing mechanism for the enhanced gas sensing performance is also discussed. The results demonstrate that doping Ru into NiO flower-like microspheres is a promising way for designing high performance acetone gas sensors.
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