Abstract
We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.
| Language | English |
|---|---|
| Pages | 244-248 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 385 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 9 Feb 2004 |
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Keywords
- amorphous solid water
- crystalline ice
- stratospheric bromine
- adsorption
- ozone
- films
- bromoform
- spectroscopy
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Mobility of haloforms on ice surfaces. / Grecea, M L ; Backus, E H G ; Fraser, H J ; Pradeep, T ; Kleyn, A W ; Bonn, M .
In: Chemical Physics Letters, Vol. 385, No. 3-4, 09.02.2004, p. 244-248.Research output: Contribution to journal › Article
TY - JOUR
T1 - Mobility of haloforms on ice surfaces
AU - Grecea, M L
AU - Backus, E H G
AU - Fraser, H J
AU - Pradeep, T
AU - Kleyn, A W
AU - Bonn, M
PY - 2004/2/9
Y1 - 2004/2/9
N2 - We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.
AB - We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.
KW - amorphous solid water
KW - crystalline ice
KW - stratospheric bromine
KW - adsorption
KW - ozone
KW - films
KW - bromoform
KW - spectroscopy
U2 - 10.1016/j.cplett.2003.12.085
DO - 10.1016/j.cplett.2003.12.085
M3 - Article
VL - 385
SP - 244
EP - 248
JO - Chemical Physics Letters
T2 - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -