chirality pure single walled carbon nanotubes paul finnie†  (National Research Council Canada)

Journal: Journal of Analytical Atomic Spectrometry

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

doi: 10.1039/d0ja00325e

Figure Lengend Snippet: Fig. 1 Elemental recovery of catalytically active transition metals in the two SWCNT reference materials, with the averages and standard deviations obtained with N ¼ 3. (a, b) Calculated percentages for SWCNT-1, fused at 850 C and 1050 C, respectively; (c, d) SRM2483, fused at 850 C and 1050 C, respectively.

Article Snippet: Two lots of commercial SWCNTs procured from Sigma-Aldrich (named here: SWCNT-7867V, with $95% carbon content, lot MKBW7867V, and SWCNT-5848V, with >70% carbon content, lot MKBW5848V) and two SWCNT reference materials (SWCNT1, from the National Research Council Canada and SRM2483, from the National Institute of Standards and Technology) were analyzed.

Techniques:

Journal: Journal of Analytical Atomic Spectrometry

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

doi: 10.1039/d0ja00325e

Figure Lengend Snippet: Fig. 4 13C solid state 1D MAS NMR of the two standards. (a) SWCNT-1 in the as-received state (bottom spectrum) and after melting (top spectra), at 850 C and 1050 C; (b) SRM2483, in the as-received (bottom spectrum) and after melting (top spectra), at 850 C and 1050 C.

Article Snippet: Two lots of commercial SWCNTs procured from Sigma-Aldrich (named here: SWCNT-7867V, with $95% carbon content, lot MKBW7867V, and SWCNT-5848V, with >70% carbon content, lot MKBW5848V) and two SWCNT reference materials (SWCNT1, from the National Research Council Canada and SRM2483, from the National Institute of Standards and Technology) were analyzed.

Techniques:

Journal: Journal of Analytical Atomic Spectrometry

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

doi: 10.1039/d0ja00325e

Figure Lengend Snippet: Fig. 5 Elemental recovery of selected transition metals present in commercial SWCNT samples (average recoveries and standard devi- ations based on N ¼ 3). (a, b) Calculated percentages for SWCNT- 7867V, at 850 C and 1050 C, respectively; (c, d) SWCNT-5848V, at 850 C and 1050 C, respectively.

Article Snippet: Two lots of commercial SWCNTs procured from Sigma-Aldrich (named here: SWCNT-7867V, with $95% carbon content, lot MKBW7867V, and SWCNT-5848V, with >70% carbon content, lot MKBW5848V) and two SWCNT reference materials (SWCNT1, from the National Research Council Canada and SRM2483, from the National Institute of Standards and Technology) were analyzed.

Techniques:

Journal: Journal of Analytical Atomic Spectrometry

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

doi: 10.1039/d0ja00325e

Figure Lengend Snippet: Fig. 6 Structural characterization of commercial nanotube samples. (a) 13C solid state 1D MAS NMR for the SWCNT-7867V sample in the as- received state (bottom spectrum) and after melting (top spectra), at 850 C and 1050 C; (b) high magnification TEM micrograph of the as- received SWCNT-5848V; (c) Raman spectrum of the nanotube sample shown in (b).

Article Snippet: Two lots of commercial SWCNTs procured from Sigma-Aldrich (named here: SWCNT-7867V, with $95% carbon content, lot MKBW7867V, and SWCNT-5848V, with >70% carbon content, lot MKBW5848V) and two SWCNT reference materials (SWCNT1, from the National Research Council Canada and SRM2483, from the National Institute of Standards and Technology) were analyzed.

Techniques:

Journal: ACS Omega

Article Title: Carbon Isotopic Measurements of Nanotubes to Differentiate Carbon Sources

doi: 10.1021/acsomega.9b03254

Figure Lengend Snippet: Production process of SWCNT-1.

Article Snippet: In 2011, the National Research Council Canada (NRC) produced a high-purity SWCNT certified reference material (CRM), SWCNT-1.

Techniques:

Journal: ACS Omega

Article Title: Carbon Isotopic Measurements of Nanotubes to Differentiate Carbon Sources

doi: 10.1021/acsomega.9b03254

Figure Lengend Snippet: δ( 13 C) values of samples taken during the production of SWCNT-1. Error bars represent the SD on replicate analyses. For details on the production process, see the text.

Article Snippet: In 2011, the National Research Council Canada (NRC) produced a high-purity SWCNT certified reference material (CRM), SWCNT-1.

Techniques:

Journal: ACS Omega

Article Title: Carbon Isotopic Measurements of Nanotubes to Differentiate Carbon Sources

doi: 10.1021/acsomega.9b03254

Figure Lengend Snippet: Estimated Amount of Carbon from CO Incorporated into the Raw SWCNT a

Article Snippet: In 2011, the National Research Council Canada (NRC) produced a high-purity SWCNT certified reference material (CRM), SWCNT-1.

Techniques: