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Pd-loaded SnO2 hierarchical nanospheres for a high dynamic range H2S micro sensor

机译：用于高动态范围H2S微传感器的PD加载的SNO2分层纳米球

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摘要

Herein, a high dynamic range H2S micro gas sensor was achieved using hierarchical Pd-loaded SnO2 nanostructures as a sensing material. SnO2 nanospheres were synthesized using a hydrothermal method without any surfactants or templates, followed by Pd nanoparticle decoration via a facile method. A hierarchical nanostructure of Pd-loaded SnO2 was formed, and its sensing abilities were compared with those of pure SnO2 nanosphere-based sensors. The Pd-loaded SnO2 hierarchical nanostructures showed an ultra-sensitive H2S detection ability down to 10 ppb, a high dynamic range (4 orders of magnitude) up to 200 ppm, and a low working temperature (150 degrees C). Thus, this micro gas sensor based on Pd-loaded SnO2 hierarchical nanostructures has promising applications in universal H2S detection. The fabrication method presented herein is simple, renewable and operable and thus may be extended to synthesize other types of metal oxide-based semiconductor micro sensors for application in various fields.
机译：这里，使用分层Pd加载的SnO2纳米结构作为传感材料实现高动态范围H 2 S微气体传感器。使用具有任何表面活性剂或模板的水热法合成SnO2纳米球，然后通过容易方法进行PD纳米粒子装饰。形成Pd负载的SnO 2的分层纳米结构，并将其感测能力与纯SnO2纳米纳米基传感器进行比较。 PD加载的SnO2分层纳米结构显示超敏感的H2S检测能力，低于10 ppb，高动态范围（幅度为4个级），高达200ppm，工作温度低（150℃）。因此，基于PD加载的SnO2分层纳米结构的这种微气传感器在通用H2S检测中具有希望的应用。本文呈现的制造方法简单，可再生和可操作，因此可以延伸以合成用于在各种领域应用的其他类型的金属氧化物基半导体微传感器。

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  • 来源
    《RSC Advances》 |2019年第11期|共8页
  • 作者

    Su Yue; Chen Peng; Wang Pengjian; Ge Jing; Hu Shi; Zhao Yuxin; Xie Gang; Liang Wenjie; Song Peng;

  • 作者单位

    Liaoning Univ Sch Phys Shenyang 110036 Peoples R China;

    Liaoning Univ Sch Phys Shenyang 110036 Peoples R China;

    Tianjin Univ Tianjin Key Lab Mol Optoelect Sci Sch Sci Dept Chem Tianjin 300072 Peoples R China;

    Chinese Acad Sci Inst Phys Beijing Key Lab Nanomat &

    Nanodevices Beijing Natl Ctr Condensed Matter Phys Beijing 100190 Peoples R China;

    Tianjin Univ Tianjin Key Lab Mol Optoelect Sci Sch Sci Dept Chem Tianjin 300072 Peoples R China;

    SINOPEC Res Inst Safety Engn State Key Lab Safety &

    Control Chem Qingdao 266071 Peoples R China;

    Northwest Univ Coll Chem &

    Mat Sci Minist Educ Key Lab Synthet &

    Nat Funct Mol Chem Xian 710127 Shaanxi Peoples R China;

    Chinese Acad Sci Inst Phys Beijing Key Lab Nanomat &

    Nanodevices Beijing Natl Ctr Condensed Matter Phys Beijing 100190 Peoples R China;

    Liaoning Univ Sch Phys Shenyang 110036 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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