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Hydrated Electron Generation by Excitation of Copper Localized Surface Plasmon Resonance
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
Lund Univ, Solid State Phys & NanoLund, Box 118, S-22100 Lund, Sweden.
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2019 (English)In: Journal of Physical Chemistry Letters, ISSN 1948-7185, E-ISSN 1948-7185, Vol. 10, no 8, p. 1743-1749Article in journal (Refereed) Published
Abstract [en]

Hydrated electrons are important in radiation chemistry and charge transfer reactions, with applications that include chemical damage of DNA, catalysis, and signaling. Conventionally, hydrated electrons are produced by pulsed radiolysis, sonolysis, two-ultraviolet-photon laser excitation of liquid water, or photodetachment of suitable electron donors. Here we report a method for the generation of hydrated electrons via single-visible-photon excitation of localized surface plasmon resonances (LSPRs) of supported sub-3 nm copper nanoparticles in contact with water. Only excitations at the LSPR maximum resulted in the formation of hydrated electrons, suggesting that plasmon excitation plays a crucial role in promoting electron transfer from the nanoparticle into the solution. The reactivity of the hydrated electrons was confirmed via proton reduction and concomitant H-2 evolution in the presence of a Ru/TiO2 catalyst.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 10, no 8, p. 1743-1749
National Category
Physical Chemistry Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-383191DOI: 10.1021/acs.jpclett.9b00792ISI: 000465507700014PubMedID: 30920838OAI: oai:DiVA.org:uu-383191DiVA, id: diva2:1338880
Funder
Swedish Research CouncilStiftelsen Olle Engkvist Byggmästare
Note

De två första författarna delar förstaförfattarskapet.

Available from: 2019-07-24 Created: 2019-07-24 Last updated: 2019-07-24Bibliographically approved

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Pavliuk, Mariia V.Hattori, YocefuSilva, Jose LuisAraujo, Carlos MoysesFernandes, Daniel L. A.Sá, Jacinto

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Pavliuk, Mariia V.Hattori, YocefuCzapla-Masztafiak, JoannaSilva, Jose LuisAraujo, Carlos MoysesFernandes, Daniel L. A.Sá, Jacinto
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