sp Carbon chain interaction with silver nanoparticles probed by Surface Enhanced Raman Scattering

被引：36

作者：

Lucotti, A. ^{[2
,3
]}

Casari, C. S. ^{[1
,3
]}

Tommasini, M. ^{[2
,3
]}

Bassi, A. Li ^{[1
,3
]}

Fazzi, D. ^{[2
,3
]}

Russo, V. ^{[1
,3
]}

Del Zoppo, M. ^{[2
,3
]}

Castiglioni, C. ^{[2
,3
]}

Cataldo, F. ^{[4
,5
]}

Bottani, C. E. ^{[1
,3
]}

Zerbi, G. ^{[2
,3
]}

机构：

[1] Politecn Milan, Dipartimento Energia, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20133 Milan, Italy

[3] Politecn Milan, Ctr NanoEngineered Mat & Surfaces, I-20133 Milan, Italy

[4] Actinium Chem Res Srl, I-00133 Rome, Italy

[5] INAF Osservatorio Astrofis Catania, I-95123 Catania, Italy

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 478卷 / 1-3期

关键词：

SUBMERGED ELECTRIC-ARC; GENERALIZED GRADIENT APPROXIMATION; GRAPHITE-ELECTRODES; POLYYNES PRODUCTION; ONE-DIMENSION; SPECTROSCOPY; MOLECULES; CARBYNE;

D O I：

10.1016/j.cplett.2009.06.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 show a strong interaction with silver colloids used as the SERS active medium revealing a chemical SERS effect. SERS spectra after mixing polyynes with silver colloids show a noticeable time evolution. Experimental results, supported by density functional theory (DFT) calculations of the Raman modes, allow us to investigate the behavior and stability of polyynes of different lengths and the overall sp conversion towards sp(2) phase. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：45 / 50

页数：6

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