Synthesis and gas sensing properties to NO2 of ZnO nanoparticles
Synthesis and gas sensing properties to NO2 of ZnO nanoparticles
复制标题
ZnO纳米颗粒的合成及其对NO2的气敏性能
DOI：
10.1016/j.snb.2013.05.020
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发表时间：
2013-08-01
影响因子：
8.4
通讯作者：
Li, Dianqing
中科院分区：
文献类型：
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作者：
Fan, Faying;Feng, Yongjun;Li, Dianqing
在这项工作中，我们通过将氢氧化碳酸锌前驱体在四个不同温度（200、400、600和800℃）下退火制备了尺寸范围为5至270 nm的ZnO纳米颗粒，并研究了它们的形貌、结构和光学性质以及对NO2的传感性能。通过涉及单独成核和老化步骤（SNAS）的简单方法合成了具有小粒径和窄尺寸分布的前驱体。在获得的四个 ZnO 样品中，ZnO-400（在 400 摄氏度下退火）表现出最好的光学性能和对 NO2 的最高传感响应。 ZnO-400 显示出快速响应（
In this work, we prepared ZnO nanoparticles with sizes ranging from 5 to 270 nm by annealing the precursor of zinc carbonate hydroxide at four different temperatures (200, 400, 600 and 800 degrees C) and investigated their morphology, structure and optical properties as well as sensing performances to NO2. The precursor with small particle size and narrow size distribution was synthesized by a simple method involving separate nucleation and aging steps (SNAS). Among four obtained ZnO samples, the ZnO-400 (annealed at 400 degrees C) exhibits the best optical properties and the highest sensing response to NO2. The ZnO-400 shows fast response (