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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >The H-2 sensing properties of facets-dependent Pd nanoparticles-supported ZnO nanorods
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The H-2 sensing properties of facets-dependent Pd nanoparticles-supported ZnO nanorods

机译：刻面依赖性PD纳米粒子的H-2感测性能支持的ZnO纳米棒

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摘要

The loading of noble-metal nanoparticles (NPs) is an effective approach for the enhancement of H-2 sensing performances, although there have been rare reports focused on the effect of the facets of noble-metal nanoparticles in the H-2 sensing performance. The catalytic and adsorption performance of noble-metal nanocrystals is mainly determined by their exposed facets, while the gas sensing performance of sensors is strongly correlated to the adsorption and reaction between the gases and sensor materials. Hence, it is very important to study the gas sensing performance of the different facets-exposed noble-metal nanoparticles. In this study, a set of shape-controlled Pd NPs have been prepared and loaded onto the ZnO nanorods, and the gas sensing performance of the Pd nanoparticle-loaded ZnO to 250 ppm of H-2 has been detected. The results indicate that the cubic Pd NPs-loaded ZnO shows higher and faster sensing response to H-2 than the octahedral and spherical Pd-loaded ZnO owing to the stronger adsorption of the H-2 by cubic Pd NPs enclosed by (100) facets than the octahedral NPs enclosed by (111) facets. The cubic Pd NPs-loaded ZnO also exhibits better sensing selectivity and repeatability towards H-2.
机译：贵金属纳米颗粒（NPS）的负载是增强H-2感测性能的有效方法，尽管已经罕见的报告集中在H-2感测性能中的贵金属纳米粒子的突细效果上。贵金属纳米晶体的催化和吸附性能主要由其暴露的刻面决定，而传感器的气体感测性能与气体和传感器材料之间的吸附和反应强烈相关。因此，研究不同刻面贵金属纳米颗粒的气体感测性能非常重要。在该研究中，已经制备了一组形状控制的PD NP并加载到ZnO纳米棒上，并且已经检测到Pd纳米粒子加载的ZnO至250ppm的H-2的气体感测性能。结果表明，由于（100）刻面的立方PD NP，由由（100）刻面的立方PD NP更强的H-2的吸附，立方PD NPS加载的ZnO显示比八面体和球形PD加载的ZnO更高且更快地感测到H-2。比（111）方面封闭的八面体NPS。立方PD NPS加载的ZnO还表现出更好的感测选择性和朝向H-​​2的可重复性。

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  • 作者

    Tang Zhilei; Zhang Yi; Deng Xiaochuan; Dai Yujie; Zhang Wending; Fan Faying; Qing Binju; Zhu Chaoliang; Fan Jie; Shi Yifei;

  • 作者单位

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

    Chinese Acad Sci Key Lab Comprehens &

    Highly Efficient Utilizat Sa Qinghai Engn &

    Technol Res Ctr Comprehens Utiliza Qinghai Inst Salt Lake Xining 810008 Qinghai Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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