Surface enhanced Raman spectroscopic studies on 1H-1,2,4-triazole adsorbed on silver colloidal nanoparticles

2008 ◽  
Vol 48 (2) ◽  
pp. 202-205 ◽  
Author(s):  
Barbara Pergolese ◽  
Maurizio Muniz-Miranda ◽  
Adriano Bigotto
Keyword(s):  
Spectroscopic Studies ◽  
Colloidal Nanoparticles ◽  
Raman Spectroscopic ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Silver Colloidal Nanoparticles

Synthesis, Self-Assembling and Redox Properties of 2-[(ω-Sulfanylalkyl)amino]-1,4-naphthoquinones

2006 ◽  
Vol 71 (9) ◽  
pp. 1383-1391 ◽  
Author(s):  
Maryte Kažemekaite ◽  
Vilma Railaite ◽  
Arunas Bulovas ◽  
Zita Talaikyte ◽  
Gediminas Niaura ◽  
...  
Keyword(s):  
Reduction Process ◽  
Spectroscopic Studies ◽  
Self Assembled Monolayers ◽  
Raman Spectroscopic ◽  
Self Assembling ◽  
Electrochemical Parameters ◽  
Surface Enhanced ◽  
Assembled Monolayers ◽  
Surface Enhanced Raman ◽  
Group Form

The newly synthesized 1,4-naphthoquinones linked via nitrogen atom to a short chain with terminal sulfanyl group form self-assembled monolayers on gold. The main electrochemical parameters of the monolayers were determined by cyclic voltammetry. Combined voltammetric and in situ Fourier-transform surface-enhanced Raman spectroscopic studies of the Au electrode modified with the title compounds clearly evidence that naphthoquinone group transforms into naphthalenediol during a reduction process.

Gold/Palladium and Silver/Palladium Colloids as Novel Metallic Substrates for Surface-Enhanced Raman Scattering

2005 ◽  
Vol 59 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Barbara Pergolese ◽  
Adriano Bigotto ◽  
Maurizio Muniz-Miranda ◽  
Giuseppe Sbrana
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Colloidal Nanoparticles ◽  
Visible Absorption ◽  
Transmission Electron ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Silver Palladium ◽  
Silver Colloidal Nanoparticles

New surface-enhanced Raman scattering (SERS) substrates, composed of gold or silver colloidal nanoparticles doped with palladium, were prepared. These novel colloids are stable and maintain a satisfactory SERS efficiency, even after long aging. The interest in doping the coinage metal nanoparticles with palladium is due to the well-known catalytic activity of this metal. Transmission electron microscopy (TEM) and ultraviolet–visible absorption spectroscopy were used to characterize the shape and size of the metal particles. It was found that these bimetallic colloidal nanoparticles have a core–shell structure, with gold or silver coated with palladium clusters.

SURFACE ENHANCED RAMAN SPECTROSCOPIC STUDIES OF ANILINE ON Ag AND Au ELECTRODES

1988 ◽  
Vol 4 (05) ◽  
pp. 458-460 ◽  
Author(s):  
Tian Zhonqun ◽  
◽  
<br>Lei Liangcai ◽  
Jing Xiabin
Keyword(s):  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Extending surface-enhanced Raman spectroscopic studies on water at gold electrodes

1995 ◽  
Vol 240 (1-3) ◽  
pp. 224-229 ◽  
Author(s):  
Z.Q. Tian ◽  
Y.X. Chen ◽  
B.W. Mao ◽  
C.Z. Li ◽  
J. Wang ◽  
...  
Keyword(s):  
Spectroscopic Studies ◽  
Gold Electrodes ◽  
Raman Spectroscopic ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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