Electronic State of Silver Nanoparticles during Their Photochemical Formation in a Deaerated Aqueous Solutionстатья
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Дата последнего поиска статьи во внешних источниках: 9 апреля 2021 г.
Аннотация:The effect of an increase in the electron density in silver nanoparticles during their formationthrough photochemical reduction of Ag+ ions in the presence of oxalate has been discovered and substantiated. The effect causes a shift of the of localized surface plasmon resonance (SPR) band from 402 to 383 nm and a decrease in its width. The quantitative relationship between the band shift value and electron density has been revealed. The observed shift of 19 nm corresponds to an approximately 10% increase in the electron concentration in nanoparticles. The observed is possibly common for other metals and affects the performance of various catalytic reactions involving metals in the nanoscale state.