Rogers, SM;
Dimitratos, N;
Jones, W;
Bowker, M;
Kanaras, AG;
Wells, PP;
Catlow, CRA;
(2016)
The adsorbed state of a thiol on palladium nanoparticles.
Physical Chemistry Chemical Physics
, 18
(26)
pp. 17265-17271.
10.1039/c6cp00957c.
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Abstract
In the present work, a combination of imaging, spectroscopic and computational methods shows that 1-dodecanethiol undergoes S-deprotonation to form 1-dodecanethiolate on the surface of palladium nanoparticles, which then self-assembles into a structure that shows a high degree of order. The alkyl chain is largely in the all-trans conformation, which occurs despite the small size of the nanoparticle, (mean diameter = 3.9 nm). Inelastic neutron scattering spectroscopy is readily able to characterise organic surface layers on nanoparticles; the nature of the material is irrelevant: whether the nanoparticle core is an oxide, a metal or a semiconductor makes no difference. Comparison to DFT calculations allows insights into the nature and conformation of the adsorbed layer.
| Type: | Article |
|---|---|
| Title: | The adsorbed state of a thiol on palladium nanoparticles |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/c6cp00957c |
| Publisher version: | http://dx.doi.org/10.1039/c6cp00957c |
| Additional information: | This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. |
| 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/1503712 |
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