A5039919421- Graphene research and applications
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- 2D Materials and Applications
- Graphene and Nanomaterials Applications
- Advancements in Battery Materials
- Advanced Chemical Physics Studies
- Semiconductor materials and devices
- Diamond and Carbon-based Materials Research
- Advanced Photocatalysis Techniques
- Bone Tissue Engineering Materials
- Electrocatalysts for Energy Conversion
- Calcium Carbonate Crystallization and Inhibition
- MXene and MAX Phase Materials
- Electrochemical Analysis and Applications
- Ion-surface interactions and analysis
- Transport and Logistics Innovations
- Supercapacitor Materials and Fabrication
- Quantum Dots Synthesis And Properties
- Advanced Materials Characterization Techniques
- Zeolite Catalysis and Synthesis
- Chalcogenide Semiconductor Thin Films
- Education, Psychology, and Social Research
- nanoparticles nucleation surface interactions
- TiO2 Photocatalysis and Solar Cells
Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry
2012-2024
Czech Academy of Sciences
2001-2021
Mendel University in Brno
2008
Czech Academy of Sciences, Institute of Physics
2006
Charles University
2006
Abstract Atomically‐thin crystals have been shown to be rich in fundamental phenomena and are promising for various applications. Mechanical exfoliation of (2D) materials from bulk is particularly suited studies due the high quality resulting monolayer crystals. To date, several techniques developed increase yield, however, they still suffer drawbacks. In this work, a novel method that exploits gold‐assisted prepare large‐area monolayers layered followed by their transfer arbitrary...
In the realm of materials science and nanotechnology, pursuit scalable preparation high-quality monolayers two-dimensional (2D) is a significant challenge. Despite widespread interest sparked by unique quantum mechanical effects in these materials, achieving controlled syntheses remains hindered lack suitable techniques. This work presents facile exfoliation approach that successfully yields bulk-crystal-sized 2D monolayers, approaching 100% under ultrahigh vacuum (UHV) conditions. The...
Neurodegenerative disorders (NDD) have become the common global health burden over last several decades. According to World Health Organization (WHO), a staggering 30 million people will be affected by Alzheimer's disease in Europe and USA 2050. Effective therapies this complex field considering multitude of symptoms associated with NDD indications, not been found yet. Based on results related studies, prevention appears promise alternative. Antioxidative anti-inflammatory properties are...
The preparation of immobilized graphene-based photocatalyst layers is highly desired for environmental applications. In this study, the an reduced graphene oxide (rGO)/TiO2 composite by electrophoretic deposition (EPD) was optimized. It enabled quantitative without sintering and use any dispersive additive. presence rGO had beneficial effects on photocatalytic degradation 4-chlorophenol in aqueous solution. A marked increase rate observed, even at very low concentrations rGO. Compared with...
Ultrafast high-capacity lithium-ion batteries are extremely desirable for portable electronic devices, where Si is the most promising alternative to conventional graphite anode due its very high theoretical capacity. However, low conductivity and poor Li-diffusivity limit rate capability. Moreover, volume expansion/contraction upon Li-intake/uptake causes severe pulverization of electrode, leading drastic capacity fading. Here, interface morphology-engineered amorphous matrix being reported...
Abstract Fluorination modifies the electronic properties of graphene, and thus it can be used to provide material with on‐demand properties. However, thermal stability fluorinated graphene is crucial for any application in devices. Herein, X‐ray photoelectron spectroscopy (XPS), temperature‐programmed desorption (TPD), Raman were address impact treatment on graphene. The annealing, at up 700 K, caused gradual loss fluorine carbon, as was demonstrated by XPS. This associated broad CO HF...
Tuning the local reactivity of graphene is a subject paramount importance. Among available strategies, activation/passivation by copper substrate very promising because it enables properties to be influenced without any transfer procedure, since can grown directly on copper. Herein, demonstrated that towards fluorination strongly face surface substrate. Graphene foil was probed and grain orientations were identified. The results evaluated means X-ray photo electron Raman spectroscopy. grains...
The preparation of immobilized graphene–based photocatalyst layers is highly desired for environmental applications. In this study, the an reduced graphene oxide (rGO)/TiO2 composite by electrophoretic deposition (EPD) was optimized. It enabled quantitative without sintering and use any dispersive additive. presence rGO had beneficial effects on photocatalytic degradation 4-chlorophenol in aqueous solution. A marked increase rate observed, even at very low concentrations rGO....
Tailoring the physicochemical properties of graphene through functionalization remains a major interest for next-generation technological applications. However, defect formation due to greatly endangers intrinsic graphene, which serious concern. Despite numerous attempts address this issue, comprehensive analysis has not been conducted. This work reports two-step fluorination process stabilize fluorinated and obtain control over fluorination-induced defects in layers. The structural,...
Hybrid layered materials assembled from atomically thin crystals and small molecules bring great promises in pushing the current information quantum technologies beyond frontiers. We demonstrate here a class of valley-spin hybrid (VSH) composed monolayer two-dimensional (2D) semiconductor double-decker single molecule magnets (SMMs). have materialized VSH prototype by thermal evaporation terbium bis-phthalocyanine onto MoS2 revealed its composition stability both microscopic spectroscopic...
Anchoring various functional groups to graphene is the most versatile approach for tailoring its properties. To date, one must use a special tunneling microscope attaching molecule at specific position on with resolution better than several hundred nanometers, however, achieving this impossible large scale. We demonstrate first time that chemical functionalization can be achieved nanometer by introducing strain scale modulation into layer. The spatial distribution of has been transferring...
The spontaneous adsorption of [N,N′,N″,N′″-tetramethyltetra-3,4-pyridino-porphyrazino-Co(II)] ([CoTmtppa]4+) from an aqueous solution onto highly ordered pyrolytic graphite (HOPG) was followed by in situ electron paramagnetic resonance (EPR). [CoTmtppa]4+(CH3SO4)4– exhibits no EPR signal the temperature range 120 to 293 K. At room temperature, on other hand, spectra both spontaneously adsorbed and powdered [CoTmtppa]4+ were unambiguously identified spectral simulations quantum chemical...
The 3D porous structure of zeolite-templated carbon characterized by a very high surface area enables the preparation metal supported catalysts with concentration and good accessibility all active centers.