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    The elemental analysis and multi-nuclear NMR study of an alkali molten salt used to digest reference and commercial SWCNT powders

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    Name:
    202010_JAAS_Manuscript_FilipaSimoes_KAUSTLibrary.pdf
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    1.352Mb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Simoes, Filipa R. F. cc
    Abou-Hamad, Edy cc
    Kamenik, Jan cc
    Kučera, Jan cc
    Da Costa, Pedro M. F. J. cc
    KAUST Department
    Imaging and Characterization Core Lab
    Material Science and Engineering Program
    NMR
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    BAS/1/1346-01-01
    URF/1/2980-01-01
    Date
    2020
    Embargo End Date
    2021-10-09
    Submitted Date
    2020-07-13
    Permanent link to this record
    http://hdl.handle.net/10754/665529
    
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    Abstract
    For quite some time, alkaline oxidation (or fusion) has been used to solubilize refractory materials and mineral ores. Recently, its application scope was extended to facilitate batch-scale elemental analysis of nanomaterials such as carbon nanotubes. Here, a sodium tetraborate salt was used to digest four different types of single-walled carbon nanotubes. These samples were produced employing Co–Mo or Fe catalyst systems. Their graphitic matrix was exposed to different melt temperatures for a short period of time, following which the concentration of six transition metals was measured. Recoveries in excess of 80% were obtained, with the melt temperature affecting more the elemental extraction in Fe-catalyzed nanotubes. Together with previous results, the work described allows drawing pertinent conclusions on the advantages and limitations of alkaline oxidation as an alternative sample digestion approach for the routine chemical analysis of nanocarbons.
    Citation
    Simoes, F. R. F., Abou-Hamad, E., Kamenik, J., Kučera, J., & Costa, P. M. F. J. (2020). The elemental analysis and multi-nuclear NMR study of an alkali molten salt used to digest reference and commercial SWCNT powders. Journal of Analytical Atomic Spectrometry. doi:10.1039/d0ja00325e
    Sponsors
    KAUST is acknowledged for funding (URF/1/2980-01-01 and BAS/1/1346-01-01). We are grateful for the continuous assistance and availability of the facilities at the Core Labs, KAUST.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Journal of Analytical Atomic Spectrometry
    DOI
    10.1039/d0ja00325e
    Additional Links
    http://xlink.rsc.org/?DOI=D0JA00325E
    ae974a485f413a2113503eed53cd6c53
    10.1039/d0ja00325e
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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