Influence of negative charge on the optical properties of a silver sol | Zendy

Vesna Vodnik | Zendy; Jovan M. Nedeljković | Zendy

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Influence of negative charge on the optical properties of a silver sol

Author(s) -

Vesna Vodnik,

Jovan M. Nedeljković

Publication year - 2000

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0003195v

Subject(s) - sodium borohydride , borohydride , ion , metal , chemistry , plasmon , inorganic chemistry , absorption (acoustics) , hydrogen , electron , analytical chemistry (journal) , materials science , catalysis , organic chemistry , physics , optoelectronics , quantum mechanics , composite material

The effects of negative charge on the optical properties of a silver sol prepared using sodium borohydride as a reductant were studied. The oscillations in the position of the maximum and the intensity of the surface plasmon absorption band were obesrved. The observed effects were explained as a consequence of the fluctuation of the density of free electrons due to the alternate charging and discharging of the silver particles. The charging process involves electron injection from borohydride ions and intermediate species formed during the course of the metal-catalyzed hydrolysis of borohydride ions (BH3OH -

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