Electrocrystallization of silver nanoparticles from silver halides in polypyrrole evidenced by their SERS activity—thermodynamic and kinetic conditions
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Silver(I) halide particles embodied in polypyrrole matrices are synthesized and further processed electrochemically to get nanoparticles of silver with significant activity in the surface-enhanced Raman spectroscopy (SERS) of the rhodamine 6G test solute, which is considered as a clear evidence of Ag nanocrystallization. The electrocrystallization of Ag nanoparticles is analyzed using redox charges of composites determined from cyclic voltammograms recorded at various time scales and/or cycle numbers. Pristine PPy/AgX and modified PPy/AgX/AgNP composites are characterized using electrochemical impedance spectroscopy, scanning electron microscopy, and X-ray electron dispersive spectroscopy. The thermodynamic and kinetic conditions of the electrochemical modification of pristine polypyrrole–AgX composites leading to the electrocrystallization of Ag nanoparticles are discussed.
Originalsprog | Engelsk |
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Tidsskrift | Journal of Solid State Electrochemistry |
Vol/bind | 22 |
Udgave nummer | 12 |
Sider (fra-til) | 3933-3945 |
Antal sider | 13 |
ISSN | 1432-8488 |
DOI | |
Status | Udgivet - 1 dec. 2018 |
Eksternt udgivet | Ja |
Bibliografisk note
Publisher Copyright:
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
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