| | |
| | |
Stat |
Members: 3643 Articles: 2'488'730 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
Investigation of sp carbon chain interaction with silver nanoparticles by Surface Enhanced Raman Scattering | A. Lucotti
; C. S. Casari
; M. Tommasini
; A. Li Bassi
; D. Fazzi
; V. Russo
; M. Del Zoppo
; C. Castiglioni
; F. Cataldo
; C. E. Bottani
; G. Zerbi
; | Date: |
28 Mar 2008 | Abstract: | Linear carbon structures (namely polyynes) constituted by sp coordinated
atoms represent a system with peculiar physical and chemical properties.
Surface Enhanced Raman Spectroscopy (SERS) is exploited here to investigate the
interaction of isolated sp carbon chains (polyynes) in a methanol solution with
silver nanoparticles. Hydrogen-terminated polyynes, produced by the submerged
arc discharge technique, show a strong interaction with silver colloids used as
the SERS active medium (remarkable chemical SERS effect). The time evolution of
polyynes SERS spectra after mixing with silver colloids allows to investigate
aggregation and sedimentation effects of silver nanoparticle colloids, sp2
phase formation as well as the evolution of the relative concentration of
polyynes of different lengths occurring in the system. Experimental results are
supported by density functional theory (DFT) calculations of the Raman modes
and reveal shortening processes of the sp chains probably due to cross linking
reactions. | Source: | arXiv, 0803.4075 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |