Characteristics of binary WO3@CuO and ternary WO3@PDA@CuO based on impressive sensing acetone odor.
Characteristics of binary WO3@CuO and ternary WO3@PDA@CuO based on impressive sensing acetone odor.
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DOI：
10.1016/j.jcis.2018.04.013
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发表时间：
2018-08
影响因子：
9.9
通讯作者：
Fuchao Yang;Fengyi Wang;Zhiguang Guo
中科院分区：
文献类型：
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作者：
Fuchao Yang;Fengyi Wang;Zhiguang Guo
采用一种简便的方法制备了一系列仿生电子鼻纳米材料WO 3、WO3@PDA、WO3@PDA@CuO、WO3@CuO和CuO，并采用多种技术系统研究了其微观结构、表面化学组成和对丙酮气味的传感能力。WO3@PDA@CuO和WO3@CuO颗粒呈纳米级，约20 nm。不同浓度的丙酮气味（50，100和200 ppm）的传感能力解决。不同灵敏度定义（Rg/Raor）的影响|拉-Rg|/Ra× 100%）对实验结果的影响。WO3@CuO传感材料显示出所有传感器中最好的传感性能，与浓度或灵敏度定义无关。这些结果为复合电子鼻传感纳米材料的设计和制备提供了新的见解。
A series of biomimetic electronic nose nanomaterials of WO3, WO3@PDA, WO3@PDA@CuO, WO3@CuO and CuO were prepared by a facile method and their microstructures, surface chemical composition and sensing ability for acetone odor were investigated systematically by a variety of technologies. The WO3@PDA@CuO and WO3@CuO particles are in nano-sized shape, about 20 nm. The sensing ability to different concentrations acetone odor (50, 100 and 200 ppm) is addressed. The effect of different sensitivity definitions (Rg/Raor |Ra− Rg|/Ra× 100%) on the comparison of experiment results is discussed. The WO3@CuO sensing material shows the best sensing performance of all the sensors, being independent of concentration or sensitivity definitions. These results provide novel insights into the design and preparation of composite electronic nose sensing nanomaterials.