Topics in Catalysis
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Plasma-Assisted Dispersion of Bimetallic Ni–Co over Al2O3–ZrO2 for CO2 Reforming of Methane: Influence of Voltage on Catalytic Properties
Topics in Catalysis - Tập 60 - Trang 843-854 - 2017
Glow discharge plasma with different voltages (700, 1000 and 1300 V) has been applied for treatment of Ni–Co/Al2O3–ZrO2 catalyst. Physicochemical properties of the catalysts were investigated by XRD, FESEM, BET and FTIR. Based on characterization results, there was an optimum amount of voltage (1000 V) in which the most uniform morphology, highest surface area and the smallest particle size was ob...... hiện toàn bộ
Particulate Filter Substrates with SCR-Functionality Manufactured by Co-extrusion of Ceramic Substrate and SCR Active Material
Topics in Catalysis - - 2017
Helical Materials with Chiral Mo(II) Catalysts
Topics in Catalysis - Tập 59 - Trang 1237-1248 - 2016
Helical mesoporous materials of the MCM-41 type with two different pore sizes were prepared by one-pot synthesis procedure using myristyl (C14) or cetyl (C16) trimethyl ammonium salts as templates. They were functionalized with the MoI2(CO)3 fragment, using a 2-aminopyridine glycidyloxypropyl derivative as anchoring ligand. TEM images showed the helical nature of the material channels. The new mat...... hiện toàn bộ
Thermally stable metal ruthenate based soot oxidation catalyst for diesel exhaust emission control
Topics in Catalysis - Tập 42 - Trang 299-302 - 2007
Lanthanum ruthenate materials with perovskite type structure can be easily synthesized with ruthenium in 4+ oxidation state. La3.5Ru4.0O13 type perovskite has been synthesized in unsupported and supported forms by using various methods. This perovskite type La3.5Ru4.0O13 phase shows high thermal stability and can therefore be used as a catalyst for high temperature applications, including those fo...... hiện toàn bộ
A Novel Mixed Ag–Pd Nanoparticles Supported on SBA Silica Through [DMAP-TMSP-DABCO]OH Basic Ionic Liquid for Suzuki Coupling Reaction
Topics in Catalysis - - Trang 1-10 - 2022
In present protocol, we have a developed a mixed metallic Ag–Pd nanoparticles (NPs) supported on sugarcane bagasse ash silica through immobilization of 1-[3-(dimethylamino) propyl] -3-(3-trimethoxysilylpropyl)-1,4-diazabicyclo [2.2.2] octan-1-ium hydroxide]ionic liquid Ag-PdNPs_(DMAP-DABCO)OH_SBAsilica. Ag-PdNPs_(DMAP-TMSP-DABCO) OH_SBA silica catalytic system was prepared by the method of reducti...... hiện toàn bộ
Kinetics and mechanism of ethylene homopolymerization and copolymerization reactions with heterogeneous Ti-based Ziegler–Natta catalysts
Topics in Catalysis - Tập 7 - Trang 69-88 - 1999
A detailed kinetic analysis of ethylene homopolymerization reactions and its copolymerization reactions with 1-hexene with a supported Ti-based Ziegler–Natta catalyst (reactions in the absence and the presence of hydrogen) shows a number of distinct kinetic features which are interpreted as a manifestation of multi-site catalysis; the catalyst contains several types of polymerization centers which...... hiện toàn bộ
Nanostructured Oxide Catalysts for Oxidative Activation of Alkanes
Topics in Catalysis - Tập 52 - Trang 962-969 - 2009
The valorization of light alkanes via catalytic oxidative dehydrogenation (ODH) and selective oxidation is, with a few exemptions, still not solved. Oxide catalysts play a foremost role in these reactions. The control of the nanostructure brings new ways to tune their catalytic properties, but to date this has been little explored for alkane activation. This paper offers an overview of the applica...... hiện toàn bộ
Mechanistic Study of the NO + NH4NO3 Reaction on H- and Fe/H-BEA Zeolites Using 15N and 18O Labeled Species
Topics in Catalysis - Tập 61 - Trang 1967-1973 - 2018
Reduction of NO by NH3 over metal-promoted zeolites represents the principal reaction in the selective catalytic reduction (SCR) technology for NOx removal from Diesel engine exhausts. It has been established that addition of ammonium nitrate (AN) to the reaction mixture substantially enhances the rate of this reaction, decreasing the temperature necessary for an efficient deNOx process. Neverthel...... hiện toàn bộ
Decomposition of Urea in the SCR Process: Combination of DFT Calculations and Experimental Results on the Catalytic Hydrolysis of Isocyanic Acid on TiO2 and Al2O3
Topics in Catalysis - Tập 52 - Trang 1740-1745 - 2009
In selective catalytic reduction (SCR) systems for diesel vehicles the injected urea solution decomposes to ammonia and isocyanic acid (HNCO), which reacts with water to another ammonia molecule and carbon dioxide over the SCR catalyst or a special urea decomposition catalyst. The second reaction step, i.e. the catalytic hydrolysis of HNCO was studied on the anatase TiO2(101) surface and Al2O3(100...... hiện toàn bộ
Electrochemical catalysts for hydrocarbon combustion
Topics in Catalysis - Tập 44 Số 3 - Trang 369-377 - 2007
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