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Article
Hydrogen Production from Methane with CO2 Utilization over Exsolution Derived Bimetallic NiCu/CeO2 Catalysts
Hydrogen production from methane with CO2 utilization over exsolution derived NiCu/CeO2 catalysts was studied. To form highly dispersed supported bimetallic NiCu particles the Ce0.75(NiCu)0.25O1.75 catalyst precu...
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Article
Highly Defective Dark TiO2 Modified with Pt: Effects of Precursor Nature and Preparation Method on Photocatalytic Properties
The study focused on the modification with platinum of dark defective titania obtained via pulsed laser ablation. Both the method of Pt introduction and the nature of the Pt precursor were varied. All samples ...
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Article
Structural and Catalytic Properties of Rh–CeO2/MWCNT Composite Catalysts
Composite catalysts consisting of Rh–CeOx structures supported on the surface of multi-walled carbon nanotubes (MWCNTs) are studied. For supported active components (Rh, Ce) the rhodium content is maintained cons...
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Article
Preparation of Model Rh–CeO2 Catalysts by Pulsed Laser Ablation in Liquid
The powders of Rh and CeO2 are synthesized by pulsed laser ablation in liquid. The Rh–CeO2 model catalysts are prepared by the calcination of these powders in a wide temperature range from 450 °C to 1000 °C. The ...
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Article
Nickel-Based Ni–Ce1–xZrxO2 Catalysts Prepared by the Pechini Method for CO2 Methanation
Nickel-based Ni–Ce1 – xZrxO2 catalysts were prepared by the Pechini method. The catalyst performance in the CO2 methanation reaction was studied. The catalysts exhibit high catalytic activity comparable to that o...
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Article
Ceria–Zirconia Supported Platinum Catalysts for the Water-Gas Shift Reaction: The Influence of Support Composition
The study is presented on the influence of the composition of a ceria-zirconia support on the structure and the activity in water-gas shift reaction of platinum catalysts (Pt/Ce0.75Zr0.25O2 and Pt/Ce0.4Zr0.5Y0.05
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Article
COMPREHENSIVE STRUCTURAL DIAGNOSTICS OF Ni–Ce1–xZrxO2 CATALYSTS PREPARED BY THE PECHINI METHOD
Nickel-containing catalysts Ni/Ce1–xZrxO2 exhibit good activity in the methanation of carbon oxides. The studies devoted to the synthesis and testing of Ni–Ce–Zr–O mixed oxide catalytic systems have been develope...
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Article
Catalysts for Low-Temperature CO Oxidation Based on Platinum, CeO2, and Carbon Nanotubes
Nanocomposite catalysts based on highly dispersed platinum and ceria particles supported on carbon nanotubes were studied. The composites were prepared using the complex (Мe4N)2[Pt2(μ-OH)2(NO3)8] as the platinum ...
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Article
STUDY OF Pt/Ce-Mn-Ox CATALYSTS FOR THE LOW-TEMPERATURE CO OXIDATION REACTION
The possibility to obtain low-temperature active platinum-based catalysts is investigated. Catalysts of the composition Pt/Ce1–xMnxO2–δ are synthesized in two steps: firstly, Ce1–xMnxO2–δ carriers with different ...
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Article
APPLICATION OF N-DOPED CARBON NANOTUBES FOR THE PREPARATION OF HIGHLY DISPERSED PdO–CeO2 COMPOSITE CATALYSTS
Pd–CeO2 catalytic composites deposited on the surface of carbon nanomaterials (CNMs) can act as model systems for probing the nature of active sites of catalytic reactions and can be also considered as promising ...
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Article
Pt/Ce0.75Zr0.25O2 – x Catalysts for Water Gas Shift Reaction: Morphology and Catalytic Properties
Highly dispersed 1.9 wt % Pt/Ce0.75Zr0.25O2 – x and 5 wt % Pt/Ce0.75Zr0.25O2 – x catalysts with an average particle size of 0.9 nm were prepared by sorption-hydrolytic precipitation. It was shown that the catalys...
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Article
EFFECT OF THE SUPPORT NATURE ON THE PHYSICOCHEMICAL PROPERTIES OF PLATINUM CATALYSTS FOR AMMONIA OXIDATION
Platinum catalysts prepared by incipient wetness impregnation of different supports (TiO2, WO3/TiO2, CeO2, Al2O3, zeolite ZSM-5) are tested in the ammonia oxidation reaction (TPR–NН3+О2) and characterized by a co...
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Article
Influence of the Preparation Method on the Physicochemical and Catalytic Properties of Platinum Catalysts Supported on Bayerite Alumina for the Partial Oxidation Reactions of Hydrocarbons
Platinum catalysts supported onto bayerite alumina were synthesized and studied. Alumina of the θ-Al2O3 type, which was prepared from metallic aluminum by an aluminate method, was used as a support, and platinum(...
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Article
GENESIS AND STRUCTURAL PROPERTIES OF (Ce1–xMx0.8Ni0.2Oy (M = La, Mg) OXIDES
The genesis and structural properties of (Ce1–xMx)0.8Ni0.2Oy (M = La, Mg; x = 0, 0.2, 0.5, 0.8, 1; 1.0 ≤ y ≤ 1.8) oxides that are promising catalyst precursors are studied. A complex of physicochemical methods (l...
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Article
Peculiarities of Structure and Morphology of Copper-Cerium Nanopowders Produced by Laser Ablation
Copper-cerium nanopowders CuOx–CeO2 (mass ratio Cu:Ce = 6:100) are prepared by mixing the dispersions of the copper and cerium oxides produced by the method of pulse laser ablation (PLA) in liquid, followed by dr...
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Article
A Study of Pt/Al2O3 Nanocomposites Obtained by Pulsed Laser Ablation to Be Used as Catalysts of Oxidation Reactions
Pulsed laser ablation (PLA) in liquids is an effective high-energy method for the synthesis of functional nanomaterials. In the present work, a nanocomposite catalyst Pt/Al2O3(PLA) is prepared by mixing solutions...
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Article
The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation
The work is related to the fundamental research of the process of ammonia neutralization using catalytic oxidation over Pt/Al2O3 catalysts in an excess of oxygen. The catalysts are synthesized using nitrate precu...
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Article
Steam reforming of dimethoxymethane, methanol and dimethyl ether on CuO–ZnO/γ-Al2O3 catalyst
The performance of a СuO–ZnO/γ-Al2O3 catalyst for the reactions of methanol, dimethyl ether (DME) and dimethoxymethane (DMM) steam reforming (SR) to hydrogen-rich gas was studied. The catalyst was found to be act...
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Article
Effect of the support composition on the physicochemical properties of Ni/Ce1–x La x O y catalysts and their activity in an autothermal methane reforming reaction
The effect of the Ce1–x La x O y (x = 0–1, 1.5 ≤ y ≤ 2.0) support composition on the physicochemical properties...
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Article
Catalytic steam cracking of heavy crude oil with molybdenum and nickel nanodispersed catalysts
The catalytic steam cracking (CSC) of heavy crude oil with high amount of sulfur (4.3 wt %) and high-boiling fractions (>500°C) is studied using Mo and Ni nanodispersed catalysts under static conditions (in an...
