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首页> 外文期刊>RSC Advances >Enhanced ultra-stable n-propylamine sensing behavior of V2O5/In2O3 core-shell nanorods
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Enhanced ultra-stable n-propylamine sensing behavior of V2O5/In2O3 core-shell nanorods

机译：V2O5 / In2O3核-壳纳米棒的增强的超稳定正丙胺感测行为

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摘要

Heterostructured V2O5/In2O3 core-shell nanorods were prepared by the combination of solid solution and hydrothermal methods. Microstructural and spectroscopic studies reveal the effective core-shell heteronanostructure. The gas sensor based on these nanorods exhibits remarkable gas sensing properties in both static and dynamic modes. It presents an optimum working temperature of 190 degrees C, a reasonable response speed and high selectivity with an ultra-stable reproducible response for n-propylamine. The sensor also shows enhanced optimum sensitivity (similar to 14), which is 3.90 times that of the pure V2O5 nanorods. Such promising gas sensing behavior of the hetero-nanostructured core-shell nanorods is explained using an energy band model and a suitable gas sensing mechanism has been established as well.
机译：固溶和水热法相结合制备了异质结构的V2O5 / In2O3核壳纳米棒。显微组织和光谱学研究揭示了有效的核-壳杂纳米结构。基于这些纳米棒的气体传感器在静态和动态模式下均表现出卓越的气体传感特性。它提供了190摄氏度的最佳工作温度，合理的响应速度和高选择性，并对正丙胺具有超稳定的可再现响应。该传感器还显示出增强的最佳灵敏度（类似于14），是纯V2O5纳米棒的3.90倍。使用能带模型解释了异质纳米结构核-壳纳米棒的这种有前途的气体传感行为，并且还建立了合适的气体传感机制。

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