A5064962371- Layered Double Hydroxides Synthesis and Applications
- Mesoporous Materials and Catalysis
- Zeolite Catalysis and Synthesis
- Catalytic Processes in Materials Science
- Polyoxometalates: Synthesis and Applications
- Catalysis for Biomass Conversion
- Crystallization and Solubility Studies
- Catalysis and Oxidation Reactions
- X-ray Diffraction in Crystallography
- Metal-Organic Frameworks: Synthesis and Applications
- Clay minerals and soil interactions
- Supercapacitor Materials and Fabrication
- Magnesium Oxide Properties and Applications
- Oxidative Organic Chemistry Reactions
- Catalysts for Methane Reforming
- Vanadium and Halogenation Chemistry
- Crystallography and molecular interactions
- Chemical Synthesis and Characterization
- Thermal Expansion and Ionic Conductivity
- TiO2 Photocatalysis and Solar Cells
- Catalysis and Hydrodesulfurization Studies
- Agriculture, Plant Science, Crop Management
- Heavy Metals in Plants
- Porphyrin and Phthalocyanine Chemistry
- Botany and Plant Ecology Studies
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences
2015-2024
Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry
2018
Polish Academy of Sciences
2009-2016
SSZ-13 is a Si-rich (Si/Al > 5) small pore zeolite (chabazite topology) important for both acid and redox catalysis. Using sample with Si/Al = 12, new procedure involving 27Al (3Q) MAS NMR spectroscopy extensive periodic DFT calculations molecular dynamics, in addition to the standard methods based on bare Co(II) cations as probes monitored by FTIR UV–vis spectroscopy, was employed. The placement of Al–O–(Si–O)2–Al Al–O–(Si–O)3–Al sequences framework determined (Al–O–Si–O–Al are absent). 54%...
Titania nanoparticles (NPs) find wide application in photocatalysis, photovoltaics, gas sensing, lithium batteries, etc. One of the most important synthetic challenges is maintaining control over polymorph composition prepared nanomaterial. In present work, TiO2 NPs corresponding to anatase, rutile, or an anatase/rutile/brookite mixture were obtained at 80 °C by inverse microemulsion method a ternary system water/cetyltrimethylammonium bromide/1-hexanol weight ratio 17:28:55. The only...
The main outcome of this research was to demonstrate the opportunity obtain a stable and well-ordered structure MCM-41 synthesized from fly ash. A series bimetallic (Cu/Mn) catalysts supported at were prepared via grinding method investigated in catalytic toluene combustion reaction show material's potential application. It proved, that Cu/Mn ratio had crucial effect on activity materials. best performance achieved with sample Cu/Mn(2.5/2.5), for which temperature 50% conversion found be 300...
Synthetic Mg-Al hydrotalcites (HT) are environmentally friendly solid bases frequently applied as catalysts in base catalyzed reactions. The most common synthesis method, using NaOH precipitant, is problematized by the possibility of introducing undesired Na contamination. Alkali-free usually performed with NH3aq, a precipitant which less efficient incorporation Mg into HT lattice. In present work, organic bases, tetrabutylammonium hydroxide and choline hydroxide, were successfully employed...
Abstract The TNU‐9 zeolite (TUN framework) is one of the most complex zeolites known. It represents a highly promising matrix for both acid and redox catalytic reactions. We present here newly developed approach involving use 29 Si 27 Al (3Q) MAS NMR spectroscopy, Co II as probes monitored by UV/Vis FTIR extensive periodic DFT calculations, including molecular dynamics, to investigating aluminum distribution in TUN framework location pairs divalent cations extra‐framework cationic positions....
The cobalt, manganese, and iron salts of tungstophosphoric or molybdophosphoric acid with growing content metals were applied for the first time as catalysts in Baeyer-Villiger (BV) oxidation cyclohexanone to ε-caprolactone molecular oxygen. characterized Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence (XRF), ethanol decomposition reaction. Introduction transition into heteropoly structure increases activity resulting comparison parent heteropolyacids. It was shown that...
Abstract Dimethyl ether (DME) is considered as a substitution of diesel oil. It can be used in engines because its high cetane number (> 55). The combustion process does not generate particle matter (PM) or sulphur oxides (SO x ) pollutions. One the methods to obtain DME direct synthesis from CO 2 and H mixture. On other hand, an attractive reagent, which safe economical source carbon. aim this work was mixture presence hybrid catalyst. In these catalytic CuO/ZrO selected metallic...
The catalytic activity of Mg-Al hydrotalcite (HT) materials in base-catalyzed reactions is known to be promoted by the low crystallinity HT solid. In present work, two routes enabling preparation finely crystalline were explored: (1) inverse microemulsion technique, and (2) co-precipitation presence starch. Carbonate, chloride bromide forms prepared, examined with X-ray diffraction, scanning electron microscopy/energy dispersive spectroscopy infrared spectroscopy, used as catalysts...
Polyhydroxyoctanoate, as a biocompatible and biodegradable biopolymer, represents an ideal candidate for biomedical applications. However, physical properties make it unsuitable electrospinning, currently the most widely used technique fabrication of fibrous scaffolds. To overcome this, was blended with polylactic acid polymer blend biomaterials were produced by electrospinning. The obtained PLA/PHO fibers cylindrical, smaller in size, more hydrophilic had higher degree biopolymer...
Activation of natural sepiolite by means grinding in a planetary mill followed wet NaOH activation was studied for the purpose endowing product with enhanced basicity potential catalytic/sorptive applications. Synthesized solids were characterized X-ray powder diffraction (XRD), N2 adsorption/desorption, scanning electron microscopy (SEM), energy dispersive (EDX), atomic absorption (AAS), Fourier-transform infrared (FTIR) and 29Si magic angle spinning nuclear magnetic resonance (MAS NMR)...