This study focuses on the characterization and water–gas shift reaction (WGSR) activity of CuO-CeO2 catalysts containing 10, 15 and 20 mol. % CuO synthesized by hard template (HT) method with KIT-6 silica acting as a template and co-precipitation (CP) method. Considerable differences in BET surface area (147–166 m2/g for CuCe HT samples compared to 22–54 m2/g for CuCe CP solids, respectively) were measured. CuO dispersion values between 28 % and 40 % were determined for CuCe HT solids, in case of CuCe CP samples, these values were in the range of 8–20 %.
COBISS.SI-ID: 4190234
Carbon nanofibers (CNF) synthesized by catalytic chemical vapor deposition (CVD)method were used to prepare supported platinum, palladium and ruthenium monometallic (2.0 wt. %) catalysts by means of incipient-wetness impregnation method. Solids were tested in catalytic wet-air oxidation (CWAO) of phenol aqueous solution (180–240° C and 10.0 bar of oxygen partial pressure) carried out in a continuous-flow trickle-bed reactor. Trends of phenol and total organic carbon (TOC) conversion demonstrate that the CNF support and CNF-Pt catalyst did not exhibit constant activity for CWAO of phenol.
COBISS.SI-ID: 4087834
In this work, activity of CuO–CeO2 catalysts containing 10, 15 and 20 mol. % CuO and synthesized by hard template method was tested in water–gas shift reaction. Catalysts exhibited ordered mesoporous structure, which was identified as the replica of KIT-6 silica pore system with CuO dispersion values between 28 and 40 %. H2-TPR/TPD experiments revealed facile and extensive CeO2 reduction in tested samples, which increased with CuO loading, indicating strong interactions between both oxide phases.
COBISS.SI-ID: 4219418
Kinetics and product analysis of detritylation of N-tritylamlodipine by benzenesulfonic acid in methanol, 9:1 (v/v) methanol:chloroform, ethanol, 2-propanol, and 1:1 (mole fraction) methanol:2-propanol have been investigated by HPLC; amongst these reaction conditions are ones closely similar to those of one method of manufacturing amlodipine benzenesulfonate.
COBISS.SI-ID: 4186906
CuO-CeO2 mixed oxide catalysts with 10, 15, and 20 mol % CuO content were prepared by the hard template method using KIT-6 silica as a template. The applied synthesis method yields solids with BET surface area in excess of 147 m2/g, highly porous nanocrystalline CeO2 morphology and CuO particle size between 1.3 and 1.9 nm. It was discovered during ethanol steam re-forming experiments that increasing CuO content is favorable in terms of ethanol conversion but also causes quicker catalyst deactivation, primarily as a result of sintering and loss of CuO dispersion.
COBISS.SI-ID: 4378906