2021
DOI: 10.1039/d1nr02033a
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Plasmonic enhancement of molecular hydrogen dissociation on metallic magnesium nanoclusters

Abstract: Light-driven plasmonic enhancement of chemical reactions on metal catalysts is a promising strategy to achieve highly selective and efficient chemical transformations. The study of plasmonic catalyst materials has traditionally focused...

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Cited by 13 publications
(6 citation statements)
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“…Hydrogenation of these stabilized intermediates subsequently desorb as CH 3 OH. Thus, the strong detection of H 3 CO* intermediates on the illuminated metasurface in our DRIFTS measurement may be evidence for active hydrogenation, where hydrogen dissociation on metallic nanoparticles have been shown to be favorable due to indirect charge transfer. Noticeably the absorption peaks associated with copper are mostly unobserved in the metasurface IR spectrum. This may be linked to the high Drude conductivity of the Au back mirror, which results in high reflectivity across the infrared spectrum.…”
mentioning
confidence: 80%
“…Hydrogenation of these stabilized intermediates subsequently desorb as CH 3 OH. Thus, the strong detection of H 3 CO* intermediates on the illuminated metasurface in our DRIFTS measurement may be evidence for active hydrogenation, where hydrogen dissociation on metallic nanoparticles have been shown to be favorable due to indirect charge transfer. Noticeably the absorption peaks associated with copper are mostly unobserved in the metasurface IR spectrum. This may be linked to the high Drude conductivity of the Au back mirror, which results in high reflectivity across the infrared spectrum.…”
mentioning
confidence: 80%
“…However, it can be experimentally challenging and time-consuming to reveal underlying mechanisms and explore the vast material space of potential compounds, for which theoretical and computational methods could come to the rescue. They have a proven track record in modeling plasmonic hot-carrier generation and transfer and designing bimetallic compounds …”
Section: Introductionmentioning
confidence: 99%
“…If an electric field is applied to gold or silver nanoparticles with a frequency corresponding to a plasmonic resonance frequency of the system, the valence electrons of the nanoparticles will be excited and will slosh back and forth collectively. This phenomenon is called localized surface plasmon resonance (LSPR), and LSPRs of gold and silver nanoparticles can be utilized in many areas such as photocatalysis, energy conversion, and biological sensing. In the field of photocatalysis, plasmonic systems can be designed as catalysts to enhance chemical reactions such as water splitting, CO 2 reduction, H 2 dissociation, and N 2 dissociation. A diverse set of plasmonic systems have been designed to accelerate the rate of the plasmon-driven reactions, and active sites on the plasmonic systems have been examined to improve the efficiency of the catalytic reaction. According to current understanding, the LSPR process includes many sub-steps such as hot-carrier generation, hot-carrier relaxation, and thermalization, which cross over a wide range of timescales. Due to the complexity of the plasmon-enhanced photocatalytic process, the mechanism behind this process is not yet fully understood. However, it is of interest to understand this mechanism so that the efficiency of the process can be improved.…”
Section: Introductionmentioning
confidence: 99%