A5049637616- Catalytic Processes in Materials Science
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Inorganic Fluorides and Related Compounds
- Ammonia Synthesis and Nitrogen Reduction
- Catalysis and Hydrodesulfurization Studies
- Mesoporous Materials and Catalysis
- Catalysts for Methane Reforming
- Catalysis for Biomass Conversion
- Zeolite Catalysis and Synthesis
- Advanced Photocatalysis Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Layered Double Hydroxides Synthesis and Applications
- Molten salt chemistry and electrochemical processes
- Gas Sensing Nanomaterials and Sensors
- Oxidative Organic Chemistry Reactions
- X-ray Diffraction in Crystallography
- Ionic liquids properties and applications
- Magnesium Oxide Properties and Applications
- Crystallization and Solubility Studies
- Carbon dioxide utilization in catalysis
- Hydrogen Storage and Materials
- Luminescence Properties of Advanced Materials
- Thermal Expansion and Ionic Conductivity
- Graphene research and applications
Adam Mickiewicz University in Poznań
2016-2025
Faculty (United Kingdom)
2018-2020
Université de Lorraine
2005-2006
Catalyse
2006
Centre National de la Recherche Scientifique
2005
By using the most popular method of thermal condensation dicyandiamide in a semi-closed system, graphitic carbon nitrides (gCNs) were synthesized at 500, 550, and 600 °C. The resulting materials comprehensively analyzed via X-ray photoelectron spectroscopy (XPS) powder diffraction (XRD)techniques. We show that use routine analytical methods provides an insight into structure nitride materials. analysis geometric linear structures fully condensed polymeric was performed ranges within which...
Graphitic carbon nitride (g-C3N4) was obtained by thermal polymerization of dicyandiamide, thiourea or melamine at high temperatures (550 and 600 °C), using different heating rates (2 10 °C min-1) synthesis times (0 4 h). The effects the conditions type precursor on efficiency g-C3N4 were studied. most efficient from 53%, while in process much smaller, 26% 11%, respectively. On basis results provided X-ray diffraction (XRD), photoelectron spectroscopy (XPS), infrared (FTIR),...
We report herein HMF (5-hydroxymethylfurfural) and furfural oxidation to 2,5-furandicarboxylic (FDCA) furoic acids, respectively, in water, under base-free conditions using supported gold nanoparticles. Prepared catalysts showed high catalytic activity environmentally friendly conditions. Especially, the use of enables getting rid most usually needed neutralization step generating salts that must be further handled/eliminated. conversion selectivity desired products depend on basicity...
Trametes versicolor 's laccase (Lac TV ) was efficient catalyst in HMF oxidation to FDCA. Its use an enzymatic and photocatalytic cascade process permitted a 40-fold increase FDCA productivity compared traditional batch systems.
Hierarchical zeolites with micro- and mesoporous frameworks can overcome diffusional limitations of microporous systems. This study investigates the post-synthetic modification Beta zeolite using different porogeneous agents (NaOH, NH4OH, NH4F) under identical conditions to compare their efficiency in generating mesopores. The effect treatment time was also examined for NH4OH NH4F. modified materials were characterized physicochemical techniques evaluated catalytic performance acetic acid...
Furfural (FF) is a strategic product for the development of highly valued chemicals from biomass. The oxidation FF, furoic acid (FA), an important precursor synthesis green esters, such as methyl furoate. Taking into account issues with direct furfural oxidation, derivatives, alkyl furoates, can be easily prepared via oxidative esterification. Here, Au nanoparticles that were immobilized on alkaline-earth metal oxide supports studied esterification while using alcohol both reactant and...
Solketal, a widely used glycerol-derived solvent, can be efficiently synthesized through heterogeneous catalysis, thus avoiding the significant product losses typically encountered with aqueous work-up in homogeneous catalysis. This study explores catalytic synthesis of solketal using solid acid catalysts derived from recovered carbon blacks (rCBs), which are obtained pyrolysis end-of-life tires. was further converted into introduction acidic functional groups concentrated H
Pt, Ru, and Ir were introduced onto the surface of graphitic carbon nitride (g-C
Abstract The use of an iridium active phase and magnesium fluoride as a support allowed us to obtain new catalysts high activities in the hydrogenation toluene. Ir/MgF 2 catalyst was four times more than system supported on commercial Al O 3 . nature precursors [H IrCl 6 or Ir 4 (CO) 12 ] pretreatment conditions (reduction oxidation/reduction) appeared have clear effect activity catalysts. For obtained from carbonyl, highest after direct reduction catalysts, whereas for hexachloroiridium...
This study focuses on the catalytic properties of ruthenium catalysts supported modified silicalite-1 (with an MFI structure). By post-synthesis modification with solutions alkali metal compound, a novel and cost-effective method was discovered to create basic centers surface supports. The not only affected basicity supports but also their porosity. influence type solution (KOH or NaOH) its concentration (0.1 M 1.0 M) both porosity investigated. materials were employed as for (1 wt.% Ru)...
1,6-Hexanediol is a relevant building blocks that could be obtained from biomass and transformed under base free conditions into adipic acid used for polymer synthesis.
The modification of commercial silica with solutions NH4F or NH4Cl salts, followed by thermal treatment, enabled generation the acidic sites in SiO2 and changed its textural properties. use ammonium salts solution also caused additional porosity. Using significant decrease specific surface area increase average pore diameter. number strength resulting acid depend on nature anion applied salt concentration solution. It has been found that sample treated presented higher total acidity...
An aniline exclusive: The introduction of copper to a Ru/MgF2 catalyst results in the strong inhibition side reaction hydrodechlorination during hydrogenation ortho-chloronitrobenzene and allows ortho-chloroaniline be produced at 100 % selectivity. Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: publisher is responsible for content...