| Téléchargement | - Voir la version finale : Determination of metallic impurities in carbon nanotubes by glow discharge mass spectrometry (PDF, 2.2 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1021/acsomega.1c03013 |
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| Auteur | Rechercher : Grinberg, Patricia1Identifiant ORCID : https://orcid.org/0000-0002-1167-6474; Rechercher : Methven, Bradley A. J.1; Rechercher : Swider, Katarzyna1; Rechercher : Mester, Zoltan1Identifiant ORCID : https://orcid.org/0000-0002-2377-2615 |
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| Affiliation | - Conseil national de recherches Canada. Centre de recherche en métrologie
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| Format | Texte, Article |
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| Sujet | carbon nanotubes; GDMS; fast impurity assessment; metals |
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| Résumé | A method for the rapid assessment of metallic impurities in carbon nanotubes (CNTs) by pin-cell source geometry glow discharge mass spectrometry (GDMS) is presented. Pins were prepared by pressing CNT powder onto an indium substrate. GDMS analysis was performed using high-carbon-content nanotube and coal-certified reference materials for calibration purposes. This approach enables the calibrated measurement of 41 elemental impurities in CNTs. The method was validated by the analysis of NIST SRM 2483 single-wall CNTs (raw soot) with good agreement with the certified values. The proposed measurement approach could also be applied not only for CNTs but also for the assessment of precursor materials used in the synthesis of CNTs and for quality control during the entire manufacturing process. The ability to assess the presence of all metallic impurities in a simple, reliable, high-throughput manner will allow the industry to real-time monitor any changes in the product process, access its toxicity, and environmental impact. As sample preparation is maintained to a minimum, this allows the determination of metallic impurities at concentration levels that are usually not attainable by most techniques. |
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| Date de publication | 2021-08-25 |
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| Maison d’édition | American Chemical Society |
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| Licence | |
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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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| 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 | ccba91b6-f45d-4bac-986c-8abe29e77e25 |
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| Enregistrement créé | 2021-10-05 |
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| Enregistrement modifié | 2021-10-05 |
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