A5018467885- Thermal and Kinetic Analysis
- Analytical chemistry methods development
- Chemical Synthesis and Reactions
- Organometallic Complex Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Crystallography and Radiation Phenomena
- Oxidative Organic Chemistry Reactions
- Advanced X-ray Imaging Techniques
- Inorganic Chemistry and Materials
- Magnetism in coordination complexes
- Extraction and Separation Processes
- Metal Extraction and Bioleaching
- Medical Imaging Techniques and Applications
- Carbon dioxide utilization in catalysis
Mexeo (Poland)
2014-2016
University of Opole
2014
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of sub-ppm. nickel and vanadium in petroleum by ion exchange concentration x-ray fluorescenceJohn G. Bergmann, C. H. Ehrhardt, L. Granatelli, J. JanikCite this: Anal. Chem. 1967, 39, 11, 1258–1261Publication Date (Print):September 1, 1967Publication History Published online1 May 2002Published inissue 1 September 1967https://pubs.acs.org/doi/10.1021/ac60255a026https://doi.org/10.1021/ac60255a026research-articleACS PublicationsRequest...
The alkaline catalysts commonly applied to alkoxylation are characterized by a limited spectrum of activity caused an irreversible termination the polyether chains. presented results show that double metal cyanide (DMC) reduce or eliminate aforementioned adverse rearrangement hydroxyl groups. Moreover, DMC indicate high at low concentrations (ppm range), as expressed polymerization rates. It was demonstrated decreased catalyst irreversibly influence its reactivity and dispersity obtained...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of trace metals in terephthalic acid by ion exchange concentration and x-ray fluorescenceJohn G. Bergmann, C. H. Ehrhardt, L. Granatelli, J. JanikCite this: Anal. Chem. 1967, 39, 11, 1331–1333Publication Date (Print):September 1, 1967Publication History Published online1 May 2002Published inissue 1 September 1967https://pubs.acs.org/doi/10.1021/ac60255a027https://doi.org/10.1021/ac60255a027research-articleACS PublicationsRequest reuse...
The extensive complementary experimental studies of the double metal catalysts (DMC) with two kinds organic ligands were performed. chemical justification observed TG/DSC (thermogravimetric analysis/differential scanning calorimetry) steps was proposed. Several ligand complexing states found in both types catalysts. X-ray absorption spectroscopy (XAS) analysis established that only Zn atoms are active metallic centers DMC catalyst regardless used ligand. Cl detected near some atoms. Contrary...
A general purpose x-ray fluorescence spectrometer has been constructed that employs the focusing properties of large spherically curved crystals. The 10 cm X single crystals are bent to a 63.5-cm radius curvature, and ground 31.75 curvature focal circle. motor-driven remotely controlled interchange mechanism positions for four these Also provided are: gas flow proportional counter or scintillation counter, chromium tungsten target tubes, wide range entrance detector slitwidth combinations....
"Highly disordered materials exhibit diversity of the functional properties which are interest nowadays technology. The example such is group a non-stoichiometric composite transition metal complex salts, known as double cyanides (DMC). These used industrial catalysts and form an interesting family porous molecular with large fraction amorphous phase. This may be obtained by introduction to crystalline zinc hexacyanocobaltate (III) (Zn3[Co(CN)6]2·nH2O) organic ligands different size....