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Synthesis of porous spherical ZnO nanoparticles and measurement of their gas-sensing property

机译：多孔球形ZnO纳米粒子的合成及其气敏性能的测定

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摘要

In present work, porous sphere-like and coralline-like ZnO nanoparticles (NPs) are synthesized by precipitation method at different calcination temperatures (400 and 450 ℃). The temperature of calcinations plays an important role in formation of NPs morphology. A formation mechanism of porous sphere-like ZnO NPs is proposed. The response of gas sensing for different concentrations of acetone (1-10,000 ppm) at optimum temperature (310 C) is shown. Besides, the ZnO NPs (400 ℃) exhibits fast response and recovery time (average value is about 9 s and 6 s). These results demonstrate that the ZnO NPs (400 ℃) can be used as an ideal candidate for fabricating high response (130-100 ppm) acetone sensor.
机译：在目前的工作中，通过沉淀法在不同的煅烧温度（400和450℃）下合成了多孔球形和珊瑚状的ZnO纳米颗粒（NPs）。煅烧温度在NPs形态的形成中起重要作用。提出了多孔球形ZnO纳米颗粒的形成机理。显示了在最佳温度（310 C）下，对于不同浓度的丙酮（1-10,000 ppm），气体检测的响应。此外，ZnO NPs（400℃）表现出快速的响应和恢复时间（平均值约为9 s和6 s）。这些结果表明，ZnO NPs（400℃）可以作为制造高响应（130-100 ppm）丙酮传感器的理想选择。

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  • 来源
    《Materials Letters》 |2014年第1期|80-83|共4页
  • 作者

    Y.Z. Mao; S.Y. Ma; W.Q. Li; X.L. Xu; D.J. Gengzang; J. Luo; L. Cheng;

  • 作者单位

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

    College of Physics and Electronic Engineering, Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, Northwest Normal University, Lanzhou, Cansu 730070, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sphere ZnO; Surface morphology; Precipitation; Nanoparticles; Sensors;

    机译：球形ZnO;表面形态沉淀;纳米颗粒;感测器;

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