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1
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Scientific co-operation with professor Borowiecki

100%
Ryczkowski J.
|
2010
|
vol. 65
132-154
EN
In present paper there will be discussed examples of author's scientific co-operation with professor Borowiecki. Generally all of them are from the area of heterogeneous catalysis with a feedback to chemical technology and an environmental protection.
2
Content available remote

Scientific co-operation with professor Nazimek

100%
Ryczkowski J.
|
2011
|
vol. 66
94-105
EN
In present paper there will be discussed examples of author's scientific co-operation with professor Nazimek. Generally all of them are from the area of heterogeneous catalysis including high dispersed metal phase mostly in the hydrogenolysis reactions of simple alkanes.
3
Content available remote

Spectroscopic studies of alumina supported nickel catalysts precursors: Part II - catalysts prepared from alkaline solutions

64%
Pasieczna-Patkowska S., Ryczkowski J.
|
2010
|
vol. 65
121-131
EN
Nickel alumina supported catalysts were prepared from alkaline solutions of hexaamminenickel nitrate by CIM and DIM methods (classical and double impregnation, respectively). The catalysts exhibited different nickel species due to the existence of various metal-support interaction strengths. As a consequence, the reducibility and other surface properties changed as a function of the preparation method. The aim of this work was to study the interaction between the metal precursor and alumina surface by means of FT-IR (Fourier transform infrared) and FT-IR/PAS (FT-IR photoacoustic spectroscopy).
4
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Investigations of Chromium(III) and (VI) Ions Sorption οn SIR by using Photoacoustic and DRS Methods

51%
Wojcik G., Hubicki Z., Ryczkowski J.
Acta Physica Polonica A
|
2009
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vol. 116
|
issue 3
432-434
EN
Chromium is a major pollutant for the environment, usually as a result of some industrial pollution. Chromium is used in various industries such as metallurgical (steel, ferrous and nonferrous alloys), refractories (chrome and chrome-magnesite), and chemical (pigments, electroplating, tanning). For this reason, significant amounts of chromium pass into the environment and cause adverse ecological effects. In the present paper the investigations of solvent impregnated resin preparation was conducted. Photoacoustic and diffuse reflectance spectra were recorded for the prepared solvent impregnated resin. Photoacoustic spectra in the infrared area allow distinguishing the differences between the sorbent applied before and after the impregnation process. Impregnation of resin is a result of physical sorption of Aliquat 336 on macroporous Amberlite XAD 16.
5
Content available remote

FT-IR/PAS Studies of Lunar Regolith Samples

51%
Pasieczna-Patkowska S., Dąbrowski A., Robens E., Ryczkowski J.
Acta Physica Polonica A
|
2008
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vol. 114
|
issue 6A
A-163-A-168
EN
This paper describes investigations of the surface properties of lunar regolith powder samples from the Apollo 11, 12, and 16 missions, respectively. For this part of studies conducted at the Faculty of Chemistry, Maria Curie-Skłodowska University a Fourier transform infrared photoacoustic spectroscopy was applied.
6
Content available remote

FT-IR/PAS and SEM EDX Studies on Aluminosilicates Modified by Cs(I), Th(IV) and U(VI)

51%
Hubicki Z., Zieba E., Wojcik G., Ryczkowski J.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
312-314
EN
Clays and zeolites are some of the most important industrial minerals. They have practical applications in geology, agriculture, construction, engineering, process industries, and environment. This article is about one of them: radioactive waste disposal. We are investigating characteristics of bentonite clay and clinoptilolite in case of Cs(I), Th(IV), U(VI) sorption.
7
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The study on alkali-promoted Co-Mo/Al2O3catalysts for water-gas shift process

51%
Antoniak K., Kowalik P., Ryczkowski J.
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2010
|
vol. 65
88-95
EN
The following contribution presents the results of studies on the effects of alkali metals on the physicochemical properties and the effectiveness of a Co-Mo/Al2O3 catalyst for the water gas shift reaction. It has been shown that the addition of alkali metals modifies the properties of Co-Mo catalysts, resulting in a significant increase in activity of catalysts in water gas shift reaction. The greatest effect was observed in the case of sodium-promoted reaction.
8
Content available remote

Investigations on hydrogenation of selected organic sulfur compounds on the Ni-Mo/Al2O3catalyst in terms of natural gas desulfurization

45%
Antoniak K., Kowalik P., Narowski R., Konkol M., Ryczkowski J.
|
2011
|
vol. 66
106-116
EN
Technological problems of natural gas desulfurization in syngases manufacturing plants have been discussed and the results of investigations on the activity of the model Ni-Mo/Al2O3 catalyst in hydrogenation of selected sulfur compounds have been presented. The HDS reaction rate is dependent on a compound structure. The hydrogenation rate on the Ni-Mo/Al2O3 catalyst for the given sulfur compound increases in the order: CS2(CH3)2S>C4H10S>C2H6S2C4H4S.
9
Content available remote

Investigation of surface properties of lunar regolith - Part IV

24%
Robens E., Dąbrowski A., Mendyk E., Goworek J., Skrzypiec K., Drewniak M., Dumańska-Słowik M., Gac W., Dobrowolski R., Pasieczna-Patkowska S., Huber M., Iwan M., Kurzydłowski K., Płociński T., Ryczkowski J., Rzączyńska Z., Sobczak J.
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2008
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vol. 63
144-168
EN
We investigated three lunar regolith powder samples from the Apollo missions. Apollo 11 and Apollo 12 samples come from lunar maria and Apollo 16 sample from a highland region. In the present paper we summarise in brief results of measurements using photoelectron spectroscopy (XPS), micro-Raman spectroscopy (RM), x-ray diffraction (XRD), x-ray fluorescence spectroscopy (XRF), temperature programmed reduction and oxidation (TPRO), thermogravimetry (TG), differential thermal analysis (DTA) and nitrogen adsorption. Parts of samples are visualised by means of scanning electron microscopy (SEM/EDX) and atomic force microscopy (AFM).
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