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.
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Document Type: Research Article
Chemistry Department, Nuclear Research Centre Negev, Beer-Sheva, Israel;;
Chemical Sciences Department and the Schlesinger Family Center for Compact Accelerators, Radiation Sources and Applications, Ariel University, Ariel, Israel
Publication date: July 3, 2018