Mass Transport Limitations in Plasmonic Photocatalysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F24%3A73625981" target="_blank" >RIV/61989592:15640/24:73625981 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/24:10255476
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.nanolett.4c01386" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.nanolett.4c01386</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.nanolett.4c01386" target="_blank" >10.1021/acs.nanolett.4c01386</a>

Result language
angličtina
Original language name
Mass Transport Limitations in Plasmonic Photocatalysis
Original language description
The interpretation of mechanisms governing hot carrier reactivity on metallic nanostructures is critical, yet elusive, for advancing plasmonic photocatalysis. In this work, we explored the influence of the diffusion of molecules on the hot carrier extraction rate at the solid-liquid interface, which is of fundamental interest for increasing the efficiency of photodevices. Through a spatially defined scanning photoelectrochemical microscopy investigation, we identified a diffusion-controlled regime hindering the plasmon-driven photochemical activity of metallic nanostructures. Using low-power monochromatic illumination (<2 W cm(-2)), we unveiled the hidden influence of mass transport on the quantum efficiency of plasmonic photocatalysts. The availability of molecules at the solid-liquid interface directly limits the extraction of hot holes, according to their nature and energy, at the reactive spots in Au nanoislands on an ultrathin TiO2 substrate. An intriguing question arises: does the mass transport enhancement caused by thermal effects unlock the reactivity of nonthermal carriers under steady state?
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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