Abstract

Al-Doped ZnO (AZO) nanocrystals with a novel cactus morphology have been successfully synthesized by a facile and efficient hydrothermal method. The crystal structure, surface morphology and chemical composition of the samples were determined by X-ray diffraction and scanning electron microscopy with an energy-dispersive X-ray analyzer, indicating that the presence of a small quantity of Al ions can greatly affect the morphology of the ZnO nanostructures. Further, the heater gas sensors were fabricated and an investigation of gas sensing properties has been carried out. The sensors based AZO powders exhibited distinctive selectivity, good response repeatability, and preferable long-term stability to ethanol. This confirms that AZO has potential applications in high-performance gas sensing materials.

中文翻译：

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一种新颖的仙人掌微结构水热法合成掺铝ZnO及其气敏性研究

摘要

通过一种简便有效的水热方法成功地合成了具有新颖仙人掌形态的掺铝ZnO（AZO）纳米晶体。通过X射线衍射和能量分散X射线分析仪的扫描电子显微镜测定了样品的晶体结构，表面形貌和化学成分，表明少量Al离子的存在可以极大地影响样品的形貌。 ZnO纳米结构。此外，制造了加热器气体传感器，并且已经进行了气体感测特性的研究。基于传感器的AZO粉末表现出独特的选择性，良好的响应重复性以及对乙醇的长期稳定性。这证实了AZO在高性能气体传感材料中具有潜在的应用。