Tailoring the hexagonal boron nitride nanomesh on Rh(111) with gold
| Autor: | A.P. Farkas, Zoltán Kónya, János Kiss, László Óvári, Gábor Vári, Krisztián Palotás, Richárd Gubó, András Berkó |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Annealing (metallurgy) Alloy General Physics and Astronomy 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Crystallography Nanomesh chemistry X-ray photoelectron spectroscopy Low-energy ion scattering law Monolayer Borazine engineering Physical and Theoretical Chemistry Scanning tunneling microscope 0210 nano-technology |
| Zdroj: | Physical Chemistry Chemical Physics. 20:15473-15485 |
| ISSN: | 1463-9084 1463-9076 |
| DOI: | 10.1039/c8cp00790j |
| Popis: | It is known that the hexagonal boron nitride (h-BN) monolayer has a periodically corrugated structure on Rh(111), termed “nanomesh”, while the h-BN layer is planar on the close packed surfaces of coinage metals (Cu, Ag, Au) due the weak interactions. Our studies are aimed at understanding the metal–h-BN interaction, when both Rh and Au are present. On the one hand, the growth and thermal properties of gold deposited on h-BN nanomesh prepared on Rh(111) were studied. On the other hand, the formation of h-BN was examined on Au/Rh surface alloys prepared by the deposition of Au on Rh(111) and subsequent annealing at 1000 K. In each case, the h-BN was prepared by the decomposition of borazine at about 1000 K. Low energy ion scattering (LEIS), X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM) measurements revealed that the growth of Au on h-BN/Rh(111) at room temperature leads to the formation of mainly three dimensional (3D) gold nanoparticles, although at low coverages ( |
| Databáze: | OpenAIRE |
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