Search Results - "Lucie Smoláková"
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Surface Properties of Hydrotalcite-Based Zn(Mg)Al Oxides and Their Catalytic Activity in Aldol Condensation of Furfural with Acetone
Published in Industrial & engineering chemistry research (26-04-2017)“…Basic mixed oxides MgAl, ZnMgAl, and ZnAl were successfully prepared from hydrotalcite precursors synthesized by urea method. Materials with the same molar…”
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2
Influence of Mg–Al Mixed Oxide Compositions on Their Properties and Performance in Aldol Condensation
Published in Industrial & engineering chemistry research (15-11-2017)“…The influence of chemical composition of Mg–Al mixed oxides on their properties and catalytic performance in aldol condensation of furfural and acetone was…”
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Effect of Calcination Temperature on the Structure and Catalytic Performance of the Ni/Al2O3 and Ni–Ce/Al2O3 Catalysts in Oxidative Dehydrogenation of Ethane
Published in Industrial & engineering chemistry research (30-12-2015)“…We studied the effect of calcination temperature of Ni/Al2O3 and Ni–Ce/Al2O3 catalysts on the specific surface area, acidity, ratio of pore volume and specific…”
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The role of ZnO in the catalytic behaviour of Zn-Al mixed oxides in aldol condensation of furfural with acetone
Published in Catalysis today (01-11-2021)“…[Display omitted] •High purity of Zn-Al hydrotalcites ensures high furfural conversion.•DRS predicts the structural properties of Zn-Al mixed oxides.•Furfural…”
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Determination of basic sites in Mg–Al mixed oxides by combination of TPD-CO2 and CO2 adsorption calorimetry
Published in Journal of thermal analysis and calorimetry (01-03-2017)“…We present the critical analysis of the utilization of CO2 adsorption calorimetry/volumetry and TPD-CO2 for the determination of the Mg–Al mixed oxide…”
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In-situ characterization of the thermal treatment of Zn-Al hydrotalcites with respect to the formation of Zn/Al mixed oxide active in aldol condensation of furfural
Published in Applied clay science (01-06-2018)“…Manuscript firstly describes the transformation of Zn-Al hydrotalcites into the appropriate Zn-Al mixed oxides during their thermal treatment up to 1000 °C. In…”
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The Role of Ni Species Distribution on the Effect of Ce as a Promoter in C2-ODH Reaction
Published in Topics in catalysis (01-10-2015)“…The aim of work was to analyse and discuss the effect of cerium on the catalytic behaviour of different types of nickel species in the oxidative…”
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Transesterification of rapeseed oil by Mg–Al mixed oxides with various Mg/Al molar ratio
Published in Chemical engineering journal (Lausanne, Switzerland : 1996) (01-03-2015)“…[Display omitted] •MgO crystallite size, SBET and esters yield increase with increasing Mg/Al ratio.•Concentration of basic sites decreases with increasing…”
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9
Aspects of potassium leaching in the heterogeneously catalyzed transesterification of rapeseed oil
Published in Fuel (Guildford) (01-01-2014)“…•Decreasing of activity of K-based catalyst caused by K-leaching to liquid phase.•Total K-leaching is not sufficient to achieve complete conversion.•The…”
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10
Determination of basic sites in Mg–Al mixed oxides by combination of TPD-CO2 and CO2 adsorption calorimetry: When the same basic sites are reported from both techniques?
Published in Journal of thermal analysis and calorimetry (01-03-2017)“…We present the critical analysis of the utilization of CO 2 adsorption calorimetry/volumetry and TPD-CO 2 for the determination of the Mg–Al mixed oxide…”
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11
Aspects of Mg-Al mixed oxide activity in transesterification of rapeseed oil in a fixed-bed reactor
Published in Fuel processing technology (01-06-2014)“…The performance of Mg-Al mixed oxides prepared from different types of precursors in transesterification of rapeseed oil was studied in a fixed-bed reactor…”
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12
Reconstruction of the ZnAl Mixed Oxides Into the Layered Double Hydroxide Catalysts Active in the Aldol Condensation of Furfural: The Role of ZnO Particles
Published in Frontiers in chemistry (14-01-2022)“…A memory effect is the ability to restore the original, lamellar layered double hydroxide structure. Herein, we have described 1) the changes in the structural…”
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13
Nickel catalyst with outstanding activity in the DRM reaction prepared by high temperature calcination treatment
Published in International journal of hydrogen energy (01-06-2016)“…The catalytic performance of some NiCe/Al2O3 catalytic systems (11 wt.% Ni and 3 wt.% Ce) were checked after being submitted to different calcination and…”
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14
Activity of the Ni–Al Mixed Oxides Prepared from Hydrotalcite-Like Precursors in the Oxidative Dehydrogenation of Ethane and Propane
Published in Topics in catalysis (01-11-2011)“…The activity of Ni–Al mixed oxides obtained by the thermal pre-treatment of Ni–Al hydrotalcite-like precursors was studied in the ODH of ethane and propane…”
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15
The Effect of Thermal Pre-Treatment on Structure, Composition, Basicity and Catalytic Activity of Mg/Al Mixed Oxides
Published in Topics in catalysis (01-06-2013)“…The goal of this work is to study the effect of thermal pre-treatment of Mg/Al mixed oxides (450–1,050 °C) on their structure, basicity and catalytic activity…”
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Catalytic behavior of Mg–Al and Zn–Al mixed oxides in the transesterification of rapeseed oil: comparison of batch and fixed bed reactors
Published in Reaction kinetics, mechanisms and catalysis (01-06-2017)“…The activity and the selectivity of Mg–Al and Zn–Al mixed oxides were studied in the transesterification of rapeseed oil with methanol in both batch and fixed…”
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Precursors of active Ni species in Ni/Al2O3 catalysts for oxidative dehydrogenation of ethane
Published in Chinese journal of catalysis (01-10-2013)“…Ni/Al2O3 catalysts for oxidative dehydrogenation (ODH) of ethane were prepared by impregnation of Al2O3 with nickel acetate or nickel nitrate, and by…”
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Aspects of stability of K/Al2O3 catalysts for the transesterification of rapeseed oil in batch and fixed-bed reactors
Published in Chinese journal of catalysis (01-07-2014)“…Catalytically active, stable, and mechanically durable solid K/Al2O3 catalysts for the transesterification of rapeseed oil with methanol was studied. In a…”
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19
Quantitative LIBS analysis of vanadium in samples of hexagonal mesoporous silica catalysts
Published in Talanta (Oxford) (15-02-2011)“…The method for the analysis of vanadium in hexagonal mesoporous silica (V-HMS) catalysts using Laser Induced Breakdown Spectrometry (LIBS) was suggested…”
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20
Speciation of Fe in Fe-modified zeolite catalysts
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (15-08-2010)“…Fe-modified zeolites (ferrierite and MFI) were prepared by four impregnation methods followed by calcination and tested as catalysts in oxidative…”
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