The effect of negatively charged metallic nanocatalysts on their reactions with alkyl radicals

Ronen Bar-Ziv, Tomer Zidki

Research output: Contribution to journalArticlepeer-review

Abstract

Stored electrons on Au and Ag nanoparticles (NPs) have been found to catalyze various reduction processes initiated by ionizing irradiation or light illumination in which the NPs act as “nano-electrodes”. In the present study, we explored the effect of charging colloidal gold and silver NPs on their reaction with methyl radicals, ·CH3. The results show that charging the colloidal metal NPs by excess of electrons, (NP)n−, affected their reaction mechanism with methyl radicals and resulted in different product composition in comparison to the analogous reactions with uncharged particles. These results should be considered in photo(electro)catalytic processes when alkyl radicals are formed near the catalyst surface.

Original languageEnglish
Pages (from-to)1791-1798
Number of pages8
JournalJournal of Coordination Chemistry
Volume71
Issue number11-13
DOIs
StatePublished - 3 Jul 2018

Keywords

  • Nanoparticles
  • electrocatalysis
  • irradiation
  • nanoelectrodes
  • radicals

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Materials Chemistry

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