Water Accommodation and Desorption Kinetics on Ice
(2014) In The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory 118(22). p.3973-3979- Abstract
- The interaction of water vapor with ice remains incompletely understood despite its importance in environmental processes. A particular concern is the probability for water accommodation on the ice surface, for which results from earlier studies vary by more than 2 orders of magnitude. Here, we apply an environmental molecular beam method to directly determine water accommodation and desorption kinetics on ice. Short D2O gas pulses collide with H2O ice between 170 and 200 K, and a fraction of the adsorbed molecules desorbs within tens of milliseconds by first order kinetics. The bulk accommodation coefficient decreases nonlinearly with increasing temperature and reaches 0.41 +/- 0.18 at 200 K. The kinetics are well described by a model... (More)
- The interaction of water vapor with ice remains incompletely understood despite its importance in environmental processes. A particular concern is the probability for water accommodation on the ice surface, for which results from earlier studies vary by more than 2 orders of magnitude. Here, we apply an environmental molecular beam method to directly determine water accommodation and desorption kinetics on ice. Short D2O gas pulses collide with H2O ice between 170 and 200 K, and a fraction of the adsorbed molecules desorbs within tens of milliseconds by first order kinetics. The bulk accommodation coefficient decreases nonlinearly with increasing temperature and reaches 0.41 +/- 0.18 at 200 K. The kinetics are well described by a model wherein water molecules adsorb in a surface state from which they either desorb or become incorporated into the bulk ice structure. The weakly bound surface state affects water accommodation on the ice surface with important implications for atmospheric cloud processes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4863367
- author
- Kong, Xiangrui ; Papagiannakopoulos, Panos ; Thomson, Erik S. ; Markovic, Nikola and Pettersson, Jan B. C.
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
- volume
- 118
- issue
- 22
- pages
- 3973 - 3979
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:84902011185
- pmid:24814567
- ISSN
- 1520-5215
- DOI
- 10.1021/jp503504e
- language
- English
- LU publication?
- no
- id
- 0f3411b8-3531-452e-8b17-0dbf6a5b4124 (old id 4863367)
- date added to LUP
- 2016-04-01 13:58:38
- date last changed
- 2022-01-27 22:06:07
@article{0f3411b8-3531-452e-8b17-0dbf6a5b4124,
abstract = {{The interaction of water vapor with ice remains incompletely understood despite its importance in environmental processes. A particular concern is the probability for water accommodation on the ice surface, for which results from earlier studies vary by more than 2 orders of magnitude. Here, we apply an environmental molecular beam method to directly determine water accommodation and desorption kinetics on ice. Short D2O gas pulses collide with H2O ice between 170 and 200 K, and a fraction of the adsorbed molecules desorbs within tens of milliseconds by first order kinetics. The bulk accommodation coefficient decreases nonlinearly with increasing temperature and reaches 0.41 +/- 0.18 at 200 K. The kinetics are well described by a model wherein water molecules adsorb in a surface state from which they either desorb or become incorporated into the bulk ice structure. The weakly bound surface state affects water accommodation on the ice surface with important implications for atmospheric cloud processes.}},
author = {{Kong, Xiangrui and Papagiannakopoulos, Panos and Thomson, Erik S. and Markovic, Nikola and Pettersson, Jan B. C.}},
issn = {{1520-5215}},
language = {{eng}},
number = {{22}},
pages = {{3973--3979}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory}},
title = {{Water Accommodation and Desorption Kinetics on Ice}},
url = {{http://dx.doi.org/10.1021/jp503504e}},
doi = {{10.1021/jp503504e}},
volume = {{118}},
year = {{2014}},
}