| Téléchargement | - Voir le manuscrit accepté : Coupled thermogravimetry, mass spectrometry, and infrared spectroscopy for quantification of surface functionality on single-walled carbon nanotubes (PDF, 767 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1007/s00216-009-3205-y |
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| Auteur | Rechercher : Kingston, Christopher T.1; Rechercher : Martínez-Rubí, Yadienka1; Rechercher : Guan, Jingwen1; Rechercher : Barnes, Michael1; Rechercher : Scriver, Christine2; Rechercher : Sturgeon, Ralph E.2; Rechercher : Simard, Benoit1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut Steacie des sciences moléculaires du CNRC
- Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
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| Format | Texte, Article |
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| Sujet | Single-walled carbon nanotubes; Functionalization; Thermogravimetric analysis; ICP-OES; TG-MS-FTIR |
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| Résumé | We have successfully applied coupled thermogravimetry, mass spectrometry, and infrared spectroscopy to the quantification of surface functional groups on single-walled carbon nanotubes. A high-purity single-walled carbon nanotube sample was subjected to a rapid functionalization reaction that attached butyric acid moieties to the nanotube sidewalls. This sample was then subjected to thermal analysis under inert desorption conditions. Resultant infrared and mass spectrometric data were easily utilized to identify the desorption of the butyric acid groups across a narrow temperature range and we were able to calculate the degree of substitution of the attached acid groups within the nanotube backbone as 1.7 carbon atoms per hundred, in very good agreement with independent analytical measurements made by inductively coupled plasma optical emission spectrometry (ICP-OES). The thermal analysis technique was also able to discern the presence of secondary functional moieties on the nanotube samples that were not accessible by ICP-OES. This work demonstrates the potential of this technique for assessing the presence of multiple and diverse functional addends on the nanotube sidewalls, beyond just the principal groups targeted by the specific functionalization reaction. |
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| Date de publication | 2010-01-01 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 17653088 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 3bfbe990-275e-4a6b-b8b7-c18dd5751914 |
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| Enregistrement créé | 2011-04-01 |
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| Enregistrement modifié | 2020-04-17 |
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