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首页> 外文期刊>Journal of the American Chemical Society >Hot-Electron-Induced Dissociation of H_2 on Gold Nanoparticles Supported on SiO_2
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Hot-Electron-Induced Dissociation of H_2 on Gold Nanoparticles Supported on SiO_2

机译：SiO_2负载金纳米粒子上热电子诱导的H_2解离

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摘要

Hot-electron-induced photodissociation of H_2 was demonstrated on small Au nanoparticles (AuNPs) supported on SiO_2. The rate of dissociation of H_2 was found to be almost 2 orders of magnitude higher than that observed on equivalently prepared AuNPs on TiO_2. The rate of H_2 dissociation was found to be linearly dependent on illumination intensity with a wavelength dependence resembling the absorption spectrum of the plasmon of the AuNPs. This result provides strong additional support for the hot-electron-induced mechanism for H_2 dissociation in this photocatalytic system.
机译：在载于SiO_2的小金纳米颗粒（AuNPs）上证明了H_2的热电子诱导光解离。发现H_2的解离速率比在TiO_2上等效制备的AuNPs观察到的速率高出近2个数量级。发现H_2解离的速率与照明强度线性相关，其波长依赖性类似于AuNPs的等离子体激元的吸收光谱。该结果为该光催化系统中H_2解离的热电子诱导机理提供了强有力的支持。

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  • 来源
    《Journal of the American Chemical Society》 |2014年第1期|64-67|共4页
  • 作者

    Shaunak Mukherjee; Linan Zhou; Amanda M. Goodman; Nicolas Large; Ciceron Ayala-Orozco; Yu Zhang; Peter Nordlander; Naomi J. Halas;

  • 作者单位

    Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

    Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States,Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States;

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  • 正文语种 eng
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  • 入库时间 2022-08-18 03:11:00

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