Hydrated Electron Generation by Excitation of Copper Localized Surface Plasmon Resonance

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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/TiO 2 catalyst.

Detaljer

Författare
  • Mariia V. Pavliuk
  • Sol Gutiérrez Álvarez
  • Yocefu Hattori
  • Maria E. Messing
  • Joanna Czapla-Masztafiak
  • Jakub Szlachetko
  • Jose L. Silva
  • Carlos Moyses Araujo
  • Daniel L. Fernandes
  • Li Lu
  • Christopher J. Kiely
  • Mohamed Abdellah
  • Peter Nordlander
  • Jacinto Sá
Enheter & grupper
Externa organisationer
  • Uppsala universitet, Historiska institutionen
  • Lehigh University
  • South Valley University
  • Rice University
  • Polish Academy of Sciences
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
Sidor (från-till)1743-1749
Antal sidor7
TidskriftJournal of Physical Chemistry Letters
Volym10
Utgivningsnummer8
StatusPublished - 2019 apr 18
PublikationskategoriForskning
Peer review utfördJa