---
_id: '67325'
abstract:
- lang: eng
  text: The influence of the hydrophilicity of mesoporous silica on wetting with water
    was investigated by comparing a standard hydrophilic MCM-41 and a partially hydrophobicized
    material obtained by trimethylsilylation of MCM-41. The materials were characterized
    using X-ray diffraction, N2 physisorption, thermogravimetric analysis, infrared
    spectroscopy, as well as 29Si and 13C solid-state nuclear magnetic resonance spectroscopy.
    Trimethylsilylation leads to a reduction of the pore diameter (determined using
    density functional theory) from 3.8 to 3.6 nm. Using proton solid-state nuclear
    magnetic resonance (NMR) under magic-angle spinning, it was found that the filling
    of these narrow pores with increasing amounts of water follows an axial mode,
    independent of surface hydrophilicity. The axial model of pore-filling is supported
    by the coexistence of two characteristic 1H NMR water signals, one from physisorbed
    water molecules, which can exchange protons with silanol groups, and one from
    bulk-like water in completely filled pores, where water molecules are in exchange
    between sites at the pore wall and sites closer to the center of the pore.
article_number: e70109
author:
- first_name: Yanjing
  full_name: Zhao, Yanjing
  last_name: Zhao
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Claudia
  full_name: Schmidt, Claudia
  id: '466'
  last_name: Schmidt
  orcid: 0000-0003-3179-9997
citation:
  ama: Zhao Y, Weinberger C, Tiemann M, Schmidt C. NMR Investigation of Water in Mesoporous
    Silica Materials With Different Surfaces. <i>Analysis &#38; Sensing</i>. 2026;6(5).
    doi:<a href="https://doi.org/10.1002/anse.70109">10.1002/anse.70109</a>
  apa: Zhao, Y., Weinberger, C., Tiemann, M., &#38; Schmidt, C. (2026). NMR Investigation
    of Water in Mesoporous Silica Materials With Different Surfaces. <i>Analysis &#38;
    Sensing</i>, <i>6</i>(5), Article e70109. <a href="https://doi.org/10.1002/anse.70109">https://doi.org/10.1002/anse.70109</a>
  bibtex: '@article{Zhao_Weinberger_Tiemann_Schmidt_2026, title={NMR Investigation
    of Water in Mesoporous Silica Materials With Different Surfaces}, volume={6},
    DOI={<a href="https://doi.org/10.1002/anse.70109">10.1002/anse.70109</a>}, number={5e70109},
    journal={Analysis &#38; Sensing}, publisher={Wiley}, author={Zhao, Yanjing and
    Weinberger, Christian and Tiemann, Michael and Schmidt, Claudia}, year={2026}
    }'
  chicago: Zhao, Yanjing, Christian Weinberger, Michael Tiemann, and Claudia Schmidt.
    “NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces.”
    <i>Analysis &#38; Sensing</i> 6, no. 5 (2026). <a href="https://doi.org/10.1002/anse.70109">https://doi.org/10.1002/anse.70109</a>.
  ieee: 'Y. Zhao, C. Weinberger, M. Tiemann, and C. Schmidt, “NMR Investigation of
    Water in Mesoporous Silica Materials With Different Surfaces,” <i>Analysis &#38;
    Sensing</i>, vol. 6, no. 5, Art. no. e70109, 2026, doi: <a href="https://doi.org/10.1002/anse.70109">10.1002/anse.70109</a>.'
  mla: Zhao, Yanjing, et al. “NMR Investigation of Water in Mesoporous Silica Materials
    With Different Surfaces.” <i>Analysis &#38; Sensing</i>, vol. 6, no. 5, e70109,
    Wiley, 2026, doi:<a href="https://doi.org/10.1002/anse.70109">10.1002/anse.70109</a>.
  short: Y. Zhao, C. Weinberger, M. Tiemann, C. Schmidt, Analysis &#38; Sensing 6
    (2026).
date_created: 2026-10-01T14:13:13Z
date_updated: 2026-10-01T14:17:52Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1002/anse.70109
intvolume: '         6'
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Analysis & Sensing
publication_identifier:
  issn:
  - 2629-2742
  - 2629-2742
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces
type: journal_article
user_id: '23547'
volume: 6
year: '2026'
...