Physica Status Solidi (b), 2011-11, Vol.248 (11), p.2552-2555
2011
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Details
- Autor(en) / Beteiligte
- Titel
- Effects on Raman spectra of functionalisation of single walled carbon nanotubes by nitric acid
- Ist Teil von
- Physica Status Solidi (b), 2011-11, Vol.248 (11), p.2552-2555
- Ort / Verlag
- Berlin: WILEY-VCH Verlag
- Erscheinungsjahr
- 2011
- Quelle
- Wiley Online Library E-Journals
- Beschreibungen/Notizen
- In the ultimate aim of grafting a fluorescent group on carbon nanotubes (CNTs) using COOH functions as anchoring groups, it was realised that optimisation of the carboxylation step of the CNTs was essential in the overall process. To reach this goal, three different treatment times with refluxed nitric acid have been tested: 2, 5 and 10 h. Electron microscopy has allowed evaluating the microstructure changes and the chemical composition on a local level. Raman spectroscopy has revealed a number of interesting evolutions especially in the D and G bands spectral region. It seems that residual nitric acid molecules may partially transfer charge to CNTs, giving rise to a doping effect, as is well known in graphite intercalation compounds.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0370-1972, 1521-3951eISSN: 1521-3951DOI: 10.1002/pssb.201100082Titel-ID: cdi_swepub_primary_oai_DiVA_org_ltu_8605
- Format
- –
- Schlagworte
- Analytical chemistry, Anchoring, Carbon nanotubes, Catalysis, Charge, Charge transfer, Chemical Sciences, Condensed matter: structure, mechanical and thermal properties, Coordination chemistry, Cross-disciplinary physics: materials science, rheology, Doping, Exact sciences and technology, functionalisation, Fysik, Intercalation compounds, Material chemistry, Materials science, Nanoscale materials and structures: fabrication and characterization, Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals, Nanotubes, Nitric acid, Organic chemistry, Physics, Raman spectroscopy, Spectra, Structure of solids and liquids, crystallography