Zobrazeno 1 - 10
of 50
pro vyhledávání: '"S. Gőbölös"'
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 319:119-125
Acidic tetra-n-butylammonium (TBA) salts of Keggin type transition-metal-monosubstituted polyoxometalate TBA 4 HPW 11 CoO 39 (Co-POM) have been chemically anchored to the amino-modified silica (NH 2 –(CH 2 ) x –SiO 2 , x = 0, 2, 3) containing 40
Publikováno v:
Catalysis Today. 81:517-527
The principle of a deterministic optimisation algorithm called holographic research strategy (HRS) has been described. It has been demonstrated that in a multidimensional experimental space having around 63 000 potential experimental points less than
Autor:
Károly Lázár, S. Gőbölös, József L. Margitfalvi, Ágnes Szegedi, Sandor Kristyan, Irina Borbáth, Mihály Hegedűs
Publikováno v:
Catalysis Today. 73:343-353
Low temperature oxidation of CO over alloy type Sn–Pt/SiO 2 catalysts with different Sn/Pt ratios has been investigated at different CO partial pressure using thermal programmed oxidation (TPO) technique and time on stream (TOS) experiments. The in
Publikováno v:
Catalysis Today. 72:157-169
Au/Mg(OH)2 catalyst was modified with different amounts of ascorbic acid. After dehydration at 350 °C, in various atmospheres, the modified Au/MgO catalysts were characterized and tested in the oxidation of CO. It has been shown for the first time t
Autor:
Irina Borbáth, Ernő Tfirst, Mihály Hegedűs, Károly Lázár, S. Gőbölös, József L. Margitfalvi, Andrea Szegedi
Publikováno v:
Journal of Catalysis. 203:94-103
Sn–Pt/SiO2 catalysts used in room temperature oxidation of CO were characterized by in situ techniques applying both Mossbauer and FTIR spectroscopy. The catalysts were prepared by an organometallic method (CSR) using 119Sn(CH3)4. The Mossbauer spe
Publikováno v:
Applied Catalysis A: General. 219:171-182
The use of a circulation-type reactor set-up for the modification of supported platinum catalysts with tin tetraethyl is described. All of the elementary steps of the modification were done in the same reactor. The new approach allowed to increase th
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 162:209-226
A Pt/H–mordenite (Pt/H–MOR) catalyst has been modified with tin using the controlled surface reaction between tin tetraalklyls and hydrogen adsorbed on platinum. Experimental evidences show that upon modification of Pt/H-MOR catalyst with tin tet
Publikováno v:
Journal of Catalysis. 196:200-204
Sn–Pt/SiO2 catalysts prepared by using controlled surface reactions are highly active in the low-temperature oxidation of CO. The results indicate that the high activity of these catalysts can be attributed to (i) the stabilization of tin–platinu
Publikováno v:
Applied Catalysis A: General. 154:L1-L6
A simple test reaction has been developed for the qualitative determination of the efficiency of platinum re-reduction or to show the presence of adsorbed oxygen on supported Pt catalysts. The method is based on the surface reaction taking place betw
Publikováno v:
Catalysis Today. 10:665-680
Alumina supported RuMo sulphide catalysts having different weights of metal content and atomic composition ratios r=Ru/(Ru+Mo) were prepared by using ammonium heptamolybdate dissolved in water or a 10% (NH4)2S-H2O solution and RuCl3.3H2O as precursor