| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Baddeley, Christopher John
University of St Andrews
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024Understanding the passivation layer formed by tolyltriazole on copper, bronze, and brass surfaces
- 2022Highly ordered N-heterocyclic carbene monolayers on Cu(111)citations
- 2022Surface confined hydrogenation of graphene nanoribbonscitations
- 2022Adsorption of the prototypical organic corrosion inhibitor benzotriazole on the Cu(100) surfacecitations
- 2016Metallosupramolecular assembly of Cr and p-terphenylnitrile by dissociation of metal carbonyls on Au(111)citations
- 2006The growth of ultrathin Au films on Ni{1 1 1}citations
- 2004An investigation of the adsorption of (R,R)-tartaric acid on oxidised Ni{1 1 1} surfacescitations
- 2003Structural and compositional analysis of two near-surface alloys produced by adsorption and thermal decomposition of Mo(CO) 6 on Ni{111)citations
Places of action
| Organizations | Location | People |
|---|
article
Surface confined hydrogenation of graphene nanoribbons
Abstract
YYS acknowledges support from the Funds for Women Graduates (GA-00558). FG and CJB acknowledge support from EPSRC through Grants EP/M029077/1 and EP/S027270/1. RS acknowledges financial support from the Scottish Funding Council through SRD-Grant HR07003. ; On-surface synthesis with designer precursor molecules is considered an effective method for preparing graphene nanoribbons (GNRs) of well-defined widths and with tunable electronic properties. Recent reports have shown that the band gap of ribbons doped with heteroatoms (such as boron, nitrogen, and sulfur) remains unchanged in magnitude in most cases. Nevertheless, theory predicts that a tunable band gap may be engineered by hydrogenation, but experimental evidence for this is so far lacking. Herein, surface-confined hydrogenation studies of 7-armchair graphene nanoribbons (7-AGNRs) grown on Au(111) surfaces, in an ultrahigh vacuum environment, are reported. GNRs are first prepared, then hydrogenated by exposure to activated hydrogen atoms. High resolution electron energy loss spectroscopy (HREELS) and scanning tunneling microscopy (STM) images reveal a self-limited hydrogenation process. By means of a combination of bond-resolved scanning tunneling microscopy (BRSTM) imaging and tip-induced site-specific dehydrogenation, the hydrogenation mechanism is studied in detail, and density-functional theory (DFT) calculation methods are used to complement the experimental findings. In all cases, the results demonstrate the successful modification of the electronic properties of the GNR/Au(111) system by edge and basal-plane hydrogenation, and a mechanism for the hydrogenation process is proposed. ; Peer reviewed