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Comparison of the potential dependence of the surface-enhanced raman effect at colloid silver particles and bulk silver electrodes

โœ Scribed by H. Wetzel; H. Gerischer; B. Pettinger


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
266 KB
Volume
85
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


The potentul dependence of surbce*nhsnccd

Ramsn syn& from pyrtdme adsorbed onto sdwr sol pxrl~lcs ts tdcnt~c31 to that from pyrldme adsorbed on flat sdbcr clectrodcs Var1~11on of the potcntul at thu mtcr~xc srlv~r sol p~~~clc/clcc~rolytc WIS achtcvcd by addmg the redo\ system europmmJt/curopmm2* and varyrng the conccntratIon ratio


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Surface-enhanced Raman spectroscopy has been used to study the surface chemistry of thiocarbohydrazide (TCH) on Ag and Cu electrodes. The TCH molecule is adsorbed on Ag and Cu surfaces through its S atom. The electrochemistry of TCH in acidic solutions is also investigated. In contrast to thiosemica