---
_id: '25904'
abstract:
- lang: eng
text: We examined the effect of CaCl2 and LiCl on ice melting in mesoporous silica
(MCM-41 and SBA-15 silica). For that purpose, we determined the ice melting temperature
in pores of various size (pore radii between 1.9 and 11.1 nm) in water and aqueous
solutions up to high total solute molality (up to about 12 mol kg–1) using differential
scanning calorimetry. We found that both electrolytes reduce the ice melting temperature
within the pores. An exception is the melting of ice in the smallest pores, which
does not seem to be affected by the presence of solutes, most likely owing to
an exclusion of the ions from entering the pores. For all other pores, we observed
that the ice melting temperature decreases as a function of pore size and electrolyte
concentration. Using thermodynamic considerations as well as additional experimental
data we developed a parametrization that can be used to predict the ice melting
point as a function of pore size and total solute molality. For that purpose,
we extended a formulation of the effective water activity of aqueous solutions
under mechanical pressure toward its application in confinement and tested this
new parametrization on literature data.
article_type: original
author:
- first_name: Evelyn
full_name: Jantsch, Evelyn
last_name: Jantsch
- 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: Thomas
full_name: Koop, Thomas
last_name: Koop
citation:
ama: Jantsch E, Weinberger C, Tiemann M, Koop T. Phase Transitions of Ice in Aqueous
Salt Solutions within Nanometer-Sized Pores. The Journal of Physical Chemistry
C. Published online 2019:24566-24574. doi:10.1021/acs.jpcc.9b06527
apa: Jantsch, E., Weinberger, C., Tiemann, M., & Koop, T. (2019). Phase Transitions
of Ice in Aqueous Salt Solutions within Nanometer-Sized Pores. The Journal
of Physical Chemistry C, 24566–24574. https://doi.org/10.1021/acs.jpcc.9b06527
bibtex: '@article{Jantsch_Weinberger_Tiemann_Koop_2019, title={Phase Transitions
of Ice in Aqueous Salt Solutions within Nanometer-Sized Pores}, DOI={10.1021/acs.jpcc.9b06527},
journal={The Journal of Physical Chemistry C}, author={Jantsch, Evelyn and Weinberger,
Christian and Tiemann, Michael and Koop, Thomas}, year={2019}, pages={24566–24574}
}'
chicago: Jantsch, Evelyn, Christian Weinberger, Michael Tiemann, and Thomas Koop.
“Phase Transitions of Ice in Aqueous Salt Solutions within Nanometer-Sized Pores.”
The Journal of Physical Chemistry C, 2019, 24566–74. https://doi.org/10.1021/acs.jpcc.9b06527.
ieee: 'E. Jantsch, C. Weinberger, M. Tiemann, and T. Koop, “Phase Transitions of
Ice in Aqueous Salt Solutions within Nanometer-Sized Pores,” The Journal of
Physical Chemistry C, pp. 24566–24574, 2019, doi: 10.1021/acs.jpcc.9b06527.'
mla: Jantsch, Evelyn, et al. “Phase Transitions of Ice in Aqueous Salt Solutions
within Nanometer-Sized Pores.” The Journal of Physical Chemistry C, 2019,
pp. 24566–74, doi:10.1021/acs.jpcc.9b06527.
short: E. Jantsch, C. Weinberger, M. Tiemann, T. Koop, The Journal of Physical Chemistry
C (2019) 24566–24574.
date_created: 2021-10-08T10:41:52Z
date_updated: 2023-03-08T08:31:45Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1021/acs.jpcc.9b06527
language:
- iso: eng
page: 24566-24574
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
quality_controlled: '1'
status: public
title: Phase Transitions of Ice in Aqueous Salt Solutions within Nanometer-Sized Pores
type: journal_article
user_id: '23547'
year: '2019'
...