A5020464466- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Carbon Nanotubes in Composites
- Graphene research and applications
- Fullerene Chemistry and Applications
- Electrochemical sensors and biosensors
- Advancements in Battery Materials
- Molecular Junctions and Nanostructures
- Electrochemical Analysis and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Diamond and Carbon-based Materials Research
- Advanced Sensor and Energy Harvesting Materials
- Porphyrin and Phthalocyanine Chemistry
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Analytical Chemistry and Sensors
- Graphene and Nanomaterials Applications
- TiO2 Photocatalysis and Solar Cells
- Nanomaterials for catalytic reactions
- Hydrogels: synthesis, properties, applications
- Organic Electronics and Photovoltaics
- Polymer Synthesis and Characterization
- Boron and Carbon Nanomaterials Research
Medical University of Białystok
2018-2024
University of Białystok
2011-2020
The University of Texas at El Paso
2011-2015
Faculty (United Kingdom)
2015
Clemson University
2007-2009
Friedrich-Alexander-Universität Erlangen-Nürnberg
2009
Universidad Autónoma de Madrid
2009
University of Havana
2007
American Sports University
2006
John Wiley & Sons (Germany)
2006
This critical review covers the use of carbon nano-onion (CNO) based materials for electrochemical capacitor (EC) electrodes. The performance CNO capacitors is reviewed in detail and compared to results obtained using different nanostructures. physico-chemical vs. properties CNOs are discussed. Their advantages, challenges applications, especially EC electrodes, discussed through an extensive analysis literature. Exohedral nano-onions much less limited by mass transfer kinetics; they show...
Intriguing materials for photovoltaics: The first trimetallic nitride endohedral metallofullerene covalently connected to a donor group is efficiently synthesized in 1,3-dipolar cycloaddition reaction. Exclusive formation of the [5,6]-regioisomer isolated N-methyl-2-ferrocenyl-Ih-Sc3[email protected]80-fulleropyrrolidine confirmed by NMR spectroscopy and electrochemistry (see picture). Supporting information this article available on WWW under...
The convergent synthesis, electrochemical characterization, and photophysical studies of phthalocyanine-fullerene hybrids 3-5 bearing an orthogonal geometry (Chart ) are reported. These donor-acceptor arrays have been assembled through metal coordination linear fullerene mono- bispyridyl ligands to ruthenium(II) phthalocyanines. hybrid [Ru(CO)(C(60)Py)Pc] (3) the triad [Ru(2)(CO)(2)(C(60)Py(2))Pc(2)] (5) were prepared by treatment phthalocyanine 6 with hexakis-substituted C(60)-pyridyl 1 2,...
The development of high-surface-area carbon electrodes with a defined pore size distribution and the incorporation pseudo-active materials to optimize overall capacitance conductivity without destroying stability are at present important research areas. Composite nano-onions (CNOs) polypyrrole (Ppy) were fabricated improve specific supercapacitor. nanostructures uniformly coated Ppy by chemical polymerization or electrochemical potentiostatic deposition form homogenous composites bilayers....
Fe3O4/CdWO4 and Fe3O4/CdWO4/PrVO4 magnetic nanoparticles were prepared at different molar ratios of PrVO4 to previous layers (Fe3O4/CdWO4) via the co-precipitation method assisted by a sonochemical procedure, in order investigate photocatalytic performance these systems their cytotoxicity properties. The physico-chemical properties determined several experimental methods: X-ray diffraction, energy dispersive spectroscopy, Fourier transformation infrared spectroscopy ultraviolet-visible...
The first pyrrolidine and cyclopropane derivatives of the trimetallic nitride templated (TNT) endohedral metallofullerenes I(h)-Sc(3)N@C(80) I(h)-Y(3)N@C(80) connected to an electron-donor unit (i.e., tetrathiafulvalene, phthalocyanine or ferrocene) were successfully prepared by 1,3-dipolar cycloaddition reactions azomethine ylides Bingel-Hirsch-type reactions. Electrochemical studies confirmed formation [6,6] regioisomers for Y(3)N@C(80)-based dyads [5,6] in case Sc(3)N@C(80)-based dyads....
Abstract Small carbon nano‐onions (CNOs, 6–8 shells) were prepared in high yield and functionalized with carboxylic groups by chemical oxidation. After functionalization these nanostructures soluble aqueous solutions. 3‐(4,5‐dimethylthiazol‐2‐yl)‐5‐(3‐carboxymethoxyphenyl)‐2‐(4‐sulfophenyl)‐2 tetrazolium (MTS) tests showed excellent cytocompatibility of all CNOs analyzed at 30 300 μg mL −1 , so can be safely used for biological applications. The first covalent oxidized (ox‐CNOs)...
Abstract Composites of unmodified or oxidized carbon nano‐onions (CNOs/ox‐CNOs) with poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) are prepared different compositions. By varying the ratio PEDOT:PSS relative to CNOs, CNO/PEDOT:PSS composites various loadings obtained and corresponding film properties studied as a function polymer. X‐ray photoelectron spectroscopy characterization is performed for pristine ox‐CNO samples. The characterized by scanning transmission...
Abstract Small multilayer fullerenes, also known as carbon nano‐onions (CNOs; 5–6 nm in diameter, 6–8 shells), show higher reactivity than other larger nanostructures. Here we report the first example of an situ polymerization aniline on phenyleneamine‐terminated CNO surfaces. The green, protonated, conducting emeraldine polyaniline (PANI) was directly synthesized surface CNO. functionalized and soluble CNO/PANI composites were characterized by TEM, SEM, DSC, Raman, infrared spectroscopy....
"Small" carbon nano-onions (CNOs) are spherical, ca. 5 nm in diameter, concentric shells of graphitic that can be also described as multi-shelled fullerenes. Given the easy functionalization and high thermal stability CNOs produced from nanodiamond, they most obvious choice for studying potential applications these fullerenes electrochemical supercapacitors (ES). Since limited accessibility surface to electrolyte penetration is observed nano-onions, performance enhancement was accomplished...
Magnetic Fe3O4/ZnWO4 and Fe3O4/ZnWO4/CeVO4 nanoparticles with different molar ratios of CeVO4 to other inorganic components were synthesized through co-precipitation a sonochemical-assisted method. X-ray diffraction, energy dispersive spectroscopy, Fourier transform infrared ultraviolet-visible diffuse reflectance vibrating sample magnetometry, scanning electron microscopy (SEM) methods used for the physico–chemical characterization obtained nanoparticles. As shown in SEM images, average...
The preparation and electrochemical properties of a novel type composite made small carbon nano-onions (CNOs) with poly(diallyldimethylammonium chloride) (PDDA) or chitosan (Chit) were investigated by cyclic voltammetry impedance spectroscopy. Composite films on glassy electrode surfaces deposited coating method, applying drop solution containing the suspended CNOs filler, PDDA Chit. Composites form relatively porous structures surface exhibit typical capacitive behavior, as well excellent...
Herein we report the preparation of truly soluble CNOs by covalent functionalization with hexadecyl chains. These compounds are prepared in two steps: first, reduction a Na-K alloy 1,2-DME under vacuum, followed nucleophilic substitution employing 1-bromohexadecane.
The complex electric modulus and the ac conductivity of carbon nano-onion/polyaniline composites were studied from 1 mHz to MHz at isothermal conditions ranging 15 K room temperature. temperature dependence dc analyses indicate a couple hopping mechanisms. distinction between thermally activated processes determination cross-over achieved by exploring fractional exponent dispersive bifurcation scaled isotherms. results are analyzed combining granular metal model (inter-grain charge tunneling...