First European users of Stardust at ICMM!
The NFFA-Europe-Pilot project granted a team from the University of Antwerpen (Belgium) to investigate metallic and oxide nanoparticles for CO2 electrorreduction.
Etiqueta: nano
Decoupling of PVD graphene by controlled oxygen intercalation (App. Surf. Sci. 2020)
In the last decade after graphene isolation in 2004, many methods have been developed for the synthesis of this material. The most used substrates have been metal surfaces, due to their catalytic action, which is helpful for the formation of graphene. However, the coupling of the graphene layer with the…
Decoupling epitaxial graphene from metals by electrochemical oxidation (Carbon 2018)
The catalytic role of metallic substrates is a perfect starting point for growing high quality graphene layers by thermal decomposition of aromatics. However, metallic substrates quench the outstanding properties that make graphene the most promising material for future applications. Thus, protocols to transfer graphene to different technologically relevant substrates are…
An atomic-scale look to graphene edge states (Nanoscale 2017)
Graphene edges are known to present localized electronic states that depend on the exact atomic configuration of the graphene border. It has been predicted that zigzag-ended and chiral-ended graphene nanostructures develop spatially and spectrally localized edge states around the Fermi level. However, experimental evidence remains scarce as atomic-scale investigations of…
On-surface chemistry: (cyclo)dehydrogenation of PAH catalysed by coinage metal surfaces (Phys. Chem. Chem. Phys. 2017)
New nanoarchitectures can be built from polycyclic aromatic hydrocarbons (PAH) by exploiting the catalytic properties of some metal surfaces. Actually, this bottom-up approach allows the formation of nanostructures with different dimensionality from the same precursor as a consequence of the diffusion of the PAH on the surface. Thus, by selecting…
New method to synthesize graphene by using C60 as carbon source (Carbon 2017)
In this work, we describe a new protocol to grow high-quality graphene by physical vapour deposition (PVD) using C60 molecules evaporated in ultra high vacuum conditions (UHV) on Cu foils substrates. The quality of the resulting graphene layer has been assessed by the combination of complementary surface characterization techniques. Additionally,…
4-aminophenol on Pt(111): adsorption and coupling
Recently, we have published a new work in a special issue of the Surface Science journal in Honour of Richard Lambert. “Adsorption and coupling of 4-aminophenol on Pt(111) surfaces” Surf. Sci. 646 (2016) 5-12 by G. Otero-Irurueta, J.I. Martínez, R.A. Bueno, F.J. Palomares, H.J. Salavagione, M.K. Singh, J. Méndez, G.J.…
Unveiling the structural and electronic properties of epitaxial graphene superstructures on Pt(111): the role of the pinning points
Graphene growth on metal surfaces is one of the most promising routes towards scalable production of high-quality graphene suitable for industrial applications. Conventionally, the growth of graphene is carried out on weakly interacting surfaces – typically Cu foils – where the substrate plays a double role: first, as a catalyst;…
Self-organized nanopatterning of silicon surfaces by ion beam sputtering
Surface nano-patterning by ion beam sputtering (IBS) is a bottom-up strategy to produce nanostructures on large areas of a wide range of materials (metals, insulators, semiconductors) in just a few minutes. This technique has been known for many years but its underlying physical mechanisms are still open to discussion. Initially,…
Direct sublimation of metal-organic cluster for growing new nanostructures
One of the most extended approaches in order to growth metal-organic nanostructures on surfaces consists in recombine small organic molecules with a carefully controlled quantity of metallic atoms on a surface. As an example, our group followed this strategy in previous works for obtaining a rich variety of nanostructures by…
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Decoupling of PVD graphene by controlled oxygen intercalation (App. Surf. Sci. 2020)
In the last decade after graphene isolation in 2004, many methods have been developed for the synthesis of this material. The most used substrates have been metal surfaces, due to their catalytic action, which is helpful for the formation of graphene. However, the coupling of the graphene layer with the…
Decoupling epitaxial graphene from metals by electrochemical oxidation (Carbon 2018)
The catalytic role of metallic substrates is a perfect starting point for growing high quality graphene layers by thermal decomposition of aromatics. However, metallic substrates quench the outstanding properties that make graphene the most promising material for future applications. Thus, protocols to transfer graphene to different technologically relevant substrates are…
An atomic-scale look to graphene edge states (Nanoscale 2017)
Graphene edges are known to present localized electronic states that depend on the exact atomic configuration of the graphene border. It has been predicted that zigzag-ended and chiral-ended graphene nanostructures develop spatially and spectrally localized edge states around the Fermi level. However, experimental evidence remains scarce as atomic-scale investigations of…
On-surface chemistry: (cyclo)dehydrogenation of PAH catalysed by coinage metal surfaces (Phys. Chem. Chem. Phys. 2017)
New nanoarchitectures can be built from polycyclic aromatic hydrocarbons (PAH) by exploiting the catalytic properties of some metal surfaces. Actually, this bottom-up approach allows the formation of nanostructures with different dimensionality from the same precursor as a consequence of the diffusion of the PAH on the surface. Thus, by selecting…
New method to synthesize graphene by using C60 as carbon source (Carbon 2017)
In this work, we describe a new protocol to grow high-quality graphene by physical vapour deposition (PVD) using C60 molecules evaporated in ultra high vacuum conditions (UHV) on Cu foils substrates. The quality of the resulting graphene layer has been assessed by the combination of complementary surface characterization techniques. Additionally,…
4-aminophenol on Pt(111): adsorption and coupling
Recently, we have published a new work in a special issue of the Surface Science journal in Honour of Richard Lambert. “Adsorption and coupling of 4-aminophenol on Pt(111) surfaces” Surf. Sci. 646 (2016) 5-12 by G. Otero-Irurueta, J.I. Martínez, R.A. Bueno, F.J. Palomares, H.J. Salavagione, M.K. Singh, J. Méndez, G.J.…
Unveiling the structural and electronic properties of epitaxial graphene superstructures on Pt(111): the role of the pinning points
Graphene growth on metal surfaces is one of the most promising routes towards scalable production of high-quality graphene suitable for industrial applications. Conventionally, the growth of graphene is carried out on weakly interacting surfaces – typically Cu foils – where the substrate plays a double role: first, as a catalyst;…
Self-organized nanopatterning of silicon surfaces by ion beam sputtering
Surface nano-patterning by ion beam sputtering (IBS) is a bottom-up strategy to produce nanostructures on large areas of a wide range of materials (metals, insulators, semiconductors) in just a few minutes. This technique has been known for many years but its underlying physical mechanisms are still open to discussion. Initially,…
Direct sublimation of metal-organic cluster for growing new nanostructures
One of the most extended approaches in order to growth metal-organic nanostructures on surfaces consists in recombine small organic molecules with a carefully controlled quantity of metallic atoms on a surface. As an example, our group followed this strategy in previous works for obtaining a rich variety of nanostructures by…