A5042735974- Electron and X-Ray Spectroscopy Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Semiconductor materials and devices
- Corrosion Behavior and Inhibition
- Surface and Thin Film Phenomena
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Ion-surface interactions and analysis
- Graphene research and applications
- Fuel Cells and Related Materials
- Carbon Nanotubes in Composites
- Advancements in Battery Materials
- Integrated Circuits and Semiconductor Failure Analysis
- Nuclear Physics and Applications
- Nanoparticles: synthesis and applications
- Graphene and Nanomaterials Applications
- Diamond and Carbon-based Materials Research
- Advancements in Photolithography Techniques
- Nuclear materials and radiation effects
- Machine Learning in Materials Science
- Glass properties and applications
- Nanotechnology research and applications
- Advanced Electron Microscopy Techniques and Applications
- Advanced Materials Characterization Techniques
- Electronic and Structural Properties of Oxides
Polish Academy of Sciences
2014-2024
Institute of Physical Chemistry
2011-2024
Czech Academy of Sciences, Institute of Physics
1999-2010
Czech Academy of Sciences, Institute of Macromolecular Chemistry
1999
University of Cambridge
1995
Shape of the C KLL (KVV) Auger spectrum provides a measure sp2/sp3 hybridisations, alternative to 1s spectra fitting. Due smaller kinetic energy electrons than photoelectrons investigated information depths are attributed lower or higher surface sensitivity, respectively. carbon nanostructures reflects density electronic states (DOS) and contains contributions sp2 (graphite) and/or sp3 (diamond) whereas for oxygen hydrogen containing this shape chemical effects. content is evaluated from...
Surfaces of iron oxide ferrimagnetic magnetite (Fe3O4) nanoparticles (MNPs) prepared by Massart's method and their functionalized form (f-MNPs) with succinic acid, L-arginine, oxalic citric acid glutamic were studied DLS, FTIR, UV-vis, TGA/DSC, X-ray photoelectron spectroscopy (XPS) reflection electron energy loss (REELS). The XPS analysis elements chemical states at the surface MNPs f-MNPs revealed differences in bonding atoms, content carbon-oxygen groups, forms, magnetic properties,...
Abstract Graphene oxide (GO) prepared from graphite powder using a modified Hummers method and reduced graphene (rGO) obtained GO different reductants, i.e., sodium borohydride, hydrazine, formaldehyde, hydroxide L-ascorbic acid, were investigated transmission electron microscopy, X-ray diffraction, Raman, infrared spectroscopic methods. The rGOs’ stacking nanostructure (flake) size (height x diameter), interlayer distance, average number of layers, distance between defects, elementary...
Silver nanocomposites were prepared using extracts resulting from different extraction methods of brewer's spent grains (BSG) herein called BW3. Extracts solvent (acetone and methanol aqueous solutions, water) methods, ultrasonic microwave-assisted alkaline-acid hydrolysis. Extraction conditions influenced the composition extract solutions differing in amount Na, K, P, Mg, Ca, Zn, SO4−, Cl−, NO3– anions, wherein predominantly varying contents P anions properties nanocomposites....
Abstract Pd and TiO 2 supported on functionalized multiwall carbon nanotubes (f-MWCNTs) catalysts were investigated in formic acid electrooxidation reaction direct fuel cell. (5–60 wt.% loading) f-MWCNTs was deposited using microwave-assisted hydrothermal method. 20 of /f-MWCNTs by reduction palladium (II) chloride salt with sodium borohydride. Catalysts’ structure composition characterized XRD, STEM, HR-TEM, TGA, XPS/XAES (Pd, Ti, O spectra features, density valence states, Auger...
The Malus sylvestris L. (LE1), Pinus (LE2), and Sorbus aucuparia (LE3) leaves` extracts were used for the synthesis of silver (Ag) nanocomposites containing different amounts chloride (AgCl), metal (Ag
Abstract An efficient method for quantitative XPS analysis is the so‐called multiline approach. This does not require standards, it takes into account instrumental and matrix effects derives information from statistical of all photoelectron intensities visible in spectra. One can expect reliability this approach to be better than methods involving uncorrected relative sensitivity factors. paper summarizes recent improvements In particular, a new expression universal energy dependence...
Measurements of the elastic peak intensity make possible estimation true inelastic mean free path (IMFP). Corresponding experiments are relatively simple and can be performed for any sample. The theoretical models used to derive relation between IMFP single multiple scattering. In present work both were based on differential scattering cross-sections calculated within partial wave expansion method. Examples calculations using presented.
Polyaniline specimens, emeraldine sulfate, hydrochloride, and base, were characterized by infrared spectroscopy, X-ray photoelectron elastic peak electron density measurements using helium pycnometry. This work has been stimulated a considerable interest in potential technological applications of polyaniline. The chemical state polyaniline verified with spectroscopy. spectroscopy was used for the qualitative quantitative surface composition analysis studied samples. inelastic mean free path...
Abstract Carbon nanotubes (CNTs) offer interesting applications in nanotechnology, biochemistry, biomedicine, catalysis, electronics, optoelectronics, electrochemistry, and sensor technologies. They could also be used as a filler for metallic nanoparticle composites prepared at elevated temperatures by sintering. In the present work oxidized multiwall carbon (ox‐MWCNTs) are investigated. The aim is their characterization after oxidation reaction, investigation of temperature stability...
The purification and functionalization of commercial multiwall carbon nanotubes was investigated.Carbon (CNT CO., Ltd, Korea) were treated with boiling concentrated HNO 3 under a reflux condenser for about 50 h at 120 • C in order to purify oxidize the raw material.The oxidized rinsed deionized water until stabilization filtrate pH.Measurement techniques included elemental analysis (CHN), scanning electron microscopy energy dispersive X-ray spectrometer, inductively coupled plasma mass...