A5068737780- Graphene research and applications
- 2D Materials and Applications
- Ga2O3 and related materials
- Covalent Organic Framework Applications
- MXene and MAX Phase Materials
- Polymer Surface Interaction Studies
- Topological Materials and Phenomena
- Iron oxide chemistry and applications
- Carbon and Quantum Dots Applications
- Advanced Photocatalysis Techniques
- Pharmacological Effects and Toxicity Studies
- Perovskite Materials and Applications
- Clay minerals and soil interactions
- Supercapacitor Materials and Fabrication
- Synthesis and Properties of Aromatic Compounds
- Graphene and Nanomaterials Applications
University of Groningen
2019-2024
University of Ioannina
2017-2024
Polydopamine is a biomimetic self-adherent polymer, which can be easily deposited on wide variety of materials. Despite the rapidly increasing interest in polydopamine-based coatings, polymerization mechanism and key intermediate species formed during deposition process are still controversial. Herein, we report systematic investigation polydopamine formation halloysite nanotubes; negative charge high surface area nanotubes favour capture intermediates that involved decelerate kinetics...
A new two dimensional (2D) material—germanane—has been synthesised recently with promising electrical and optical properties. In this paper we report the first realisation of germanane field-effect transistors fabricated from multilayer single crystal flakes. Our devices show transport in both electron hole doped regimes on/off current ratio up to 105(104) carrier mobilities 150 cm2 (V · s)−1(70 s)−1) at K (room temperature). significant enhancement device conductivity under illumination nm...
Similar to carbon, germanium exists in various structures such as three-dimensional crystalline and germanene, a two-dimensional atomic layer. Regarding the electronic properties, they are either semiconductors or Dirac semimetals. Here, we report highly conductive metallic state thermally annealed germanane (hydrogen-terminated GeH), which shows resistivity of ∼10–7 Ω·m that is orders magnitude lower than any other allotrope germanium. By comparing resistivity, Raman spectra, thickness...
Abstract Germanane (GeH), a germanium analogue of graphane, has recently attracted considerable interest because its remarkable combination properties makes it an extremely suitable candidate to be used as 2D material for field effect devices, photovoltaics, and photocatalysis. Up now, the synthesis GeH been conducted by substituting Ca H in β‐CaGe 2 layered Zintl phase through topochemical deintercalation aqueous HCl. This reaction is generally slow takes place over 6 14 days. The new...
Germanane (GeH) and silicane (SiH), members of the Xanes family, have garnered significant attention as 2D materials due to their diverse properties, which hold promise for applications in electronics, optoelectronics, energy storage, sensing. Typically, highly concentrated hydrochloric acid (HCl) or hydrofluoric (HF) is employed synthesis these Xanes, but both routes are problematic slow kinetics safety concerns, respectively. Here first time, a faster safer method demonstrated that...
Germanane, a two-dimensional Ge lattice in which each atom is hydrogen-terminated the z-direction, possesses remarkable combination of electronic and optical properties that are attractive for applications ranging from chemical sensing to electrocatalysis photocatalysis. In this work, we studied germanane (GeH) novel butyl-functionalized (GeBuxH(1−x)) as photocatalysts water purification under visible light irradiation utilizing challenging conditions terms photocatalyst loading (1 mg per g...
Abstract Germanane (GeH), a germanium analogue of graphane, has recently attracted considerable interest because its remarkable combination properties makes it an extremely suitable candidate to be used as 2D material for field effect devices, photovoltaics, and photocatalysis. Up now, the synthesis GeH been conducted by substituting Ca H in β‐CaGe 2 layered Zintl phase through topochemical deintercalation aqueous HCl. This reaction is generally slow takes place over 6 14 days. The new...
Germanane (GeH), a graphane analogue, has attracted significant interest because of its optoelectronic properties; however, the environmental and biological effects GeH have scarcely been investigated so far. Here we report facile approach based on Langmuir–Schaefer deposition to produce homogeneous dense monolayer films various substrates. In view possible applications extend use unexplored fields, antibacterial activity for first time found that this promising 2D structure exhibits...
Abstract Group‐14 Xenes beyond graphene such as silicene, germanene, and stanene have recently gained a lot of attention for their peculiar electronic properties, which can be tuned by covalent functionalization. Up until now, reported methods the top‐down synthesis covalently functionalized silicene germanene typically yield multilayered flakes with minimum thickness 100 nm. Herein, ex situ functionalization (fGe) is via 1,3‐dipolar cycloaddition azomethine ylide generated decarboxylative...
In the present work we report for first time carbonization of biomass waste, such as stale bread and spent coffee, in piranha solution (H2SO4-H2O2) at ambient conditions. Carbonization is fast exothermic, resulting formation carbon nanosheets decent yields 25–35%, depending on starting material. The structure morphology were verified by X-ray diffraction, Raman, photoelectron microscopy techniques. Interestingly, obtained spontaneously ignites upon contact with fuming nitric acid HNO3...
Abstract Polydopamine is a biomimetic self-adherent polymer, which can be easily deposited on wide variety of materials. Despite the rapidly increasing interest in polydopamine-based coatings, polymerization mechanism and key intermediate species formed during deposition process are still controversial. Herein, we report systematic investigation polydopamine formation halloysite nanotubes; negative charge high surface area nanotubes favour capture intermediates that involved decelerate...
As an emerging subgroup of 2D materials, monoelemental layered materials and their hydrogenated analogues (Xanes) such as silicane germanane, have attracted considerable interest due to remarkable combination physical, chemical, (opto)electronic properties. On the other hand, changing size structure two-dimensional result nanostructures with new unique In this direction, here we present transformation germanane siloxane sheets into nanoscrolls nanodots respectively, towards generation novel...