Taj, S;
Baird, D;
Rosu-Finsen, A;
McCoustra, MRS;
(2017)
Surface heterogeneity and inhomogeneous broadening of vibrational line profiles.
Physical Chemistry Chemical Physics
, 19
(11)
pp. 7990-7995.
10.1039/c6cp07530d.
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Text (Correction dated 18 September 2019)
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Abstract
The surface heterogeneity of amorphous silica (aSiO2) has been probed using coverage dependent temperature programmed desorption (TPD) of a simple probe molecule, carbon monoxide (CO). The resulting distribution of interaction energies is the foundation from which an environmentally broadened vibrational line profile synthesis has been undertaken. These simulations are compared with measured line profiles recorded at 0.1 cm−1 resolution using reflection–absorption infrared spectroscopy (RAIRS). A comparison of such line profile synthesis for CO on amorphous silica and on porous amorphous solid water (p-ASW) is also reported and conclusions are drawn as to the vibrational relaxation and surface dynamics of the CO molecule on the two surfaces.
| Type: | Article |
|---|---|
| Title: | Surface heterogeneity and inhomogeneous broadening of vibrational line profiles |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/c6cp07530d |
| Publisher version: | http://dx.doi.org/10.1039/c6cp07530d |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. - With correction, dated 18 September 2019, published under a Creative Commons Attribution 3.0 Unported Licence (http://creativecommons.org/licenses/by/3.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10054091 |
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