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Phenomenological Arrhenius Analyses in Plasmon-Enhanced Catalysis

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 نشر من قبل Prashant Jain
 تاريخ النشر 2019
  مجال البحث فيزياء
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 تأليف Prashant K. Jain




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A range of chemical reactions occurring on the surfaces of metal nanoparticles exhibit enhanced rates under plasmonic excitation. Recent analyses based on Arrhenius law fitting have argued in favor of a purely photothermal mechanism of enhancement and suggested the lack of an involvement of hot electrons. However, there is a caveat as shown here: under certain scenarios, it is practically impossible to distinguish between a photochemical (non-thermal) effect of plasmonic excitation and a purely photothermal one using a phenomenological Arrhenius fitting of the reaction rates alone.



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