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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >(150550)One-step facile synthesis of a NiO/ZnO biomorphic nanocomposite using a poplar tree leaf template to generate an enhanced gas sensing platform to detect n-butanol
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(150550)One-step facile synthesis of a NiO/ZnO biomorphic nanocomposite using a poplar tree leaf template to generate an enhanced gas sensing platform to detect n-butanol

机译：（150550）一种使用杨树树叶模板的NiO / ZnO生物型纳米复合材料的一步容易合成，产生增强的气体传感平台以检测正丁醇

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Fabricating gas sensors with a facile, environmentally benign method to detect chemical vapor with high sensitivity and selectivity is of great importance for environmental monitoring. A biomorphic NiO/ZnO nanocomposite has been facilely synthesized in one step using a poplar tree leaf template (PTLT). A PTLT NiO/ZnO nanocomposite was constructed with the generic form of a PTLT and the morphology resembled the spongy structure of mesophyll tissue. Compared to routine ZnO-based materials, the PTLT NiO/ZnO nanocompite, generated with the biomorphic template, had a smaller average size and exhibited a p-n heterojunction at the n-type ZnO interface. PTLT NiO/ZnO detected n-butanol with great sensitivity (Rair/ Rgas = 106-100 ppm) and selectivity (5-10 times greater response than the other vapors) at 240 °C as a gas sensor on a gas sensing platform. Compared to PTLT ZnO, PTLT NiO/ZnO demonstrated enhanced gas sensing properties, which were attributed to high concentration of oxygen vacancies and the formation of p-n heterojunctions.
机译：用容器制造气体传感器，环境良性方法，以检测具有高灵敏度和选择性的化学蒸气，对环境监测具有重要意义。使用杨树树叶模板（PTLT）在一步中仅为一步中合成生物晶体/ ZnO纳米复合物。用PTLT的通用形式构建PTLT NiO / ZnO纳米复合材料，并且形态类似于培养基组织的海绵结构。与常规的ZnO基材料相比，用生物晶体模板产生的PTLT NiO / ZnO纳米化合物具有较小的平均尺寸，并在N型ZnO界面处表现出p-n异质结。 PTLT NIO / ZnO检测到具有很大敏感性（Rair / RGAs = 106-100ppm）的正丁醇（Rair / RGAs = 106-100ppm），在240°C时选择性（比其他蒸汽更大的响应越大5-10倍），作为气体传感平台上的气体传感器。与PTLT ZnO相比，PTLT NiO / ZnO证明了增强的气体传感性能，其归因于高浓度的氧空位和形成P-N异质结。

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