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Kolyagin YG, Yakimov AV, Tolborg S, et al. Application of (119)Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural (119)Sn Isotope Abundance. J Phys Chem Lett. 2016;7(7):1249-53doi: 10.1021/acs.jpclett.6b00249.
Kolyagin, Y. G., Yakimov, A. V., Tolborg, S., Vennestrøm, P. N., & Ivanova, I. I. (2016). Application of (119)Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural (119)Sn Isotope Abundance. The journal of physical chemistry letters, 7(7), 1249-53. https://doi.org/10.1021/acs.jpclett.6b00249
Kolyagin, Yury G, et al. "Application of (119)Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural (119)Sn Isotope Abundance." The journal of physical chemistry letters vol. 7,7 (2016): 1249-53. doi: https://doi.org/10.1021/acs.jpclett.6b00249
Kolyagin YG, Yakimov AV, Tolborg S, Vennestrøm PN, Ivanova II. Application of (119)Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural (119)Sn Isotope Abundance. J Phys Chem Lett. 2016 Apr 07;7(7):1249-53. doi: 10.1021/acs.jpclett.6b00249. Epub 2016 Mar 18. PMID: 26978430.
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J Phys Chem Lett. 2016 Apr 07;7(7):1249-53. doi: 10.1021/acs.jpclett.6b00249. Epub 2016 Mar 18.

Application of (119)Sn CPMG MAS NMR for Fast Characterization of Sn Sites in Zeolites with Natural (119)Sn Isotope Abundance.

The journal of physical chemistry letters

Yury G Kolyagin, Alexander V Yakimov, Søren Tolborg, Peter N R Vennestrøm, Irina I Ivanova

Affiliations

  1. Department of Chemistry, Lomonosov Moscow State University , Leninskie gory 1, 119991, Moscow, Russia.
  2. A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninskiy prospect 29, 119992, Moscow, Russia.
  3. Haldor Topsøe A/S, Haldor Topsøes Allé 1, DK-2800 Kongens Lyngby, Denmark.
  4. Department of Chemistry, Technical University of Denmark , Kemitorvet, DK-2800 Kongens Lyngby, Denmark.

PMID: 26978430 DOI: 10.1021/acs.jpclett.6b00249

Abstract

(119)Sn CPMG MAS NMR is demonstrated to be a fast and efficient method for characterization of Sn-sites in Sn-containing zeolites. Tuning of the CPMG echo-train sequence decreases the experimental time by a factor of 5-40 in the case of as-synthesized and hydrated Sn-BEA samples and by 3 orders of magnitude in the case of dehydrated Sn-BEA samples as compared to conventional methods. In the latter case, the reconstruction of the quantitative spectrum without the loss of sensitivity is shown to be possible. The method proposed allows obtaining (119)Sn MAS NMR spectra with improved resolution for Sn-BEA zeolites with natural (119)Sn isotope abundance using conventional MAS NMR equipment.

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