Forster, M;
Raval, R;
Hodgson, A;
Carrasco, J;
Michaelides, A;
(2011)
c(2 x 2) Water-Hydroxyl Layer on Cu(110): A Wetting Layer Stabilized by Bjerrum Defects.
PHYS REV LETT
, 106
(4)
, Article 046103. 10.1103/PhysRevLett.106.046103.
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Abstract
Understanding the composition and stability of mixed water-hydroxyl layers is a key step in describing wetting and how surfaces respond to redox processes. Here we show that, instead of forming a complete hydrogen bonding network, structures containing an excess of water over hydroxyl are stabilized on Cu (110) by forming a distorted hexagonal network of water-hydroxyl trimers containing Bjerrum defects. This arrangement maximizes the number of strong bonds formed by water donation to OH and provides uncoordinated OH groups able to hydrogen bond multilayer water and nucleate growth.
| Type: | Article |
|---|---|
| Title: | c(2 x 2) Water-Hydroxyl Layer on Cu(110): A Wetting Layer Stabilized by Bjerrum Defects |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.106.046103 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.106.046103 |
| Language: | English |
| Additional information: | © 2011 American Physical Society |
| Keywords: | NEAR-AMBIENT CONDITIONS, PARTIAL DISSOCIATION, METAL-SURFACES, ADSORPTION, CHEMISTRY, PLATINUM, PT(111) |
| 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 Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1314642 |
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