---
_id: '63992'
abstract:
- lang: eng
  text: Solid-state NMR combined with dynamic nuclear polarization (DNP NMR) is used
    to study hydration processes in tricalcium silicate (Ca3SiO5, abbreviated as C3S)
    samples. The studied C3S samples have experienced early stage hydration (1–30
    h) and slow aging (9 years) processes. The appearance of Q3 and Q4 lines in the
    29Si MAS and 1H → 29Si CP MAS NMR spectra obtained for partly hydrated C3S samples
    indicated the formation of amorphous silica which corresponds to their carbonation,
    which was corroborated by complementary FTIR data. Significant DNP signal enhancements
    obtained for the studied samples allowed to further investigate the C3S carbonation
    process in detail employing the 1H → 29Si CP MAS FSLG HETCOR technique. Finally,
    DNP enhanced 1H → 13C CP MAS and 1H → 13C CP MAS FSLG HETCOR techniques enabled
    to directly observe the formation of carbonate moieties in partly hydrated C3S
    samples.
author:
- first_name: Vytautas
  full_name: Klimavicius, Vytautas
  last_name: Klimavicius
- first_name: Harald
  full_name: Hilbig, Harald
  last_name: Hilbig
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
- first_name: Gerd
  full_name: Buntkowsky, Gerd
  last_name: Buntkowsky
citation:
  ama: Klimavicius V, Hilbig H, Gutmann T, Buntkowsky G. Direct Observation of Carbonate
    Formation in Partly Hydrated Tricalcium Silicate by Dynamic Nuclear Polarization
    Enhanced NMR Spectroscopy. <i>Journal of Physical Chemistry C</i>. 2021;125(13):7321–7328.
    doi:<a href="https://doi.org/10.1021/acs.jpcc.0c10382">10.1021/acs.jpcc.0c10382</a>
  apa: Klimavicius, V., Hilbig, H., Gutmann, T., &#38; Buntkowsky, G. (2021). Direct
    Observation of Carbonate Formation in Partly Hydrated Tricalcium Silicate by Dynamic
    Nuclear Polarization Enhanced NMR Spectroscopy. <i>Journal of Physical Chemistry
    C</i>, <i>125</i>(13), 7321–7328. <a href="https://doi.org/10.1021/acs.jpcc.0c10382">https://doi.org/10.1021/acs.jpcc.0c10382</a>
  bibtex: '@article{Klimavicius_Hilbig_Gutmann_Buntkowsky_2021, title={Direct Observation
    of Carbonate Formation in Partly Hydrated Tricalcium Silicate by Dynamic Nuclear
    Polarization Enhanced NMR Spectroscopy}, volume={125}, DOI={<a href="https://doi.org/10.1021/acs.jpcc.0c10382">10.1021/acs.jpcc.0c10382</a>},
    number={13}, journal={Journal of Physical Chemistry C}, publisher={American Chemical
    Society}, author={Klimavicius, Vytautas and Hilbig, Harald and Gutmann, Torsten
    and Buntkowsky, Gerd}, year={2021}, pages={7321–7328} }'
  chicago: 'Klimavicius, Vytautas, Harald Hilbig, Torsten Gutmann, and Gerd Buntkowsky.
    “Direct Observation of Carbonate Formation in Partly Hydrated Tricalcium Silicate
    by Dynamic Nuclear Polarization Enhanced NMR Spectroscopy.” <i>Journal of Physical
    Chemistry C</i> 125, no. 13 (2021): 7321–7328. <a href="https://doi.org/10.1021/acs.jpcc.0c10382">https://doi.org/10.1021/acs.jpcc.0c10382</a>.'
  ieee: 'V. Klimavicius, H. Hilbig, T. Gutmann, and G. Buntkowsky, “Direct Observation
    of Carbonate Formation in Partly Hydrated Tricalcium Silicate by Dynamic Nuclear
    Polarization Enhanced NMR Spectroscopy,” <i>Journal of Physical Chemistry C</i>,
    vol. 125, no. 13, pp. 7321–7328, 2021, doi: <a href="https://doi.org/10.1021/acs.jpcc.0c10382">10.1021/acs.jpcc.0c10382</a>.'
  mla: Klimavicius, Vytautas, et al. “Direct Observation of Carbonate Formation in
    Partly Hydrated Tricalcium Silicate by Dynamic Nuclear Polarization Enhanced NMR
    Spectroscopy.” <i>Journal of Physical Chemistry C</i>, vol. 125, no. 13, American
    Chemical Society, 2021, pp. 7321–7328, doi:<a href="https://doi.org/10.1021/acs.jpcc.0c10382">10.1021/acs.jpcc.0c10382</a>.
  short: V. Klimavicius, H. Hilbig, T. Gutmann, G. Buntkowsky, Journal of Physical
    Chemistry C 125 (2021) 7321–7328.
date_created: 2026-02-07T15:47:39Z
date_updated: 2026-02-17T16:16:25Z
doi: 10.1021/acs.jpcc.0c10382
extern: '1'
intvolume: '       125'
issue: '13'
language:
- iso: eng
page: 7321–7328
publication: Journal of Physical Chemistry C
publication_identifier:
  issn:
  - 1932-7447
publisher: American Chemical Society
status: public
title: Direct Observation of Carbonate Formation in Partly Hydrated Tricalcium Silicate
  by Dynamic Nuclear Polarization Enhanced NMR Spectroscopy
type: journal_article
user_id: '100715'
volume: 125
year: '2021'
...