Articles with "sio2 catalysts" as a keyword



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One‐Pot Synthesis of Cyclodextrin‐Doped Cu‐SiO2 Catalysts for Efficient Hydrogenation of Dimethyl Oxalate to Ethylene Glycol

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201701246

Abstract: The β‐cyclodextrin (β‐CD) was successfully applied to synthesize Cu‐SiO2 catalysts by the sol‐gel method. The first and most important question addressed was increasing the copper loading with higher dispersion in the silica support. Another task… read more here.

Keywords: dimethyl oxalate; cyclodextrin; hydrogenation dimethyl; sio2 catalysts ... See more keywords
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Hierarchical Porosity Tailoring of Sol–Gel Derived Pt/SiO2 Catalysts

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Published in 2018 at "Topics in Catalysis"

DOI: 10.1007/s11244-018-1032-0

Abstract: Hierarchically porous materials offer the opportunity for catalyst development in regards to improving catalytic performances. In the present work, the combination of latex synthesis, sonochemical reduction and two-step catalysed sol–gel process has been demonstrated to… read more here.

Keywords: hierarchical porosity; porosity tailoring; sio2 catalysts; sol gel ... See more keywords
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Enhanced selective deoxygenation of m-cresol to toluene on Ni/SiO2 catalysts derived from nickel phyllosilicate

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Published in 2019 at "Catalysis Today"

DOI: 10.1016/j.cattod.2018.02.035

Abstract: Abstract The nickel phyllosilicate derived Ni/SiO2 catalysts (PS-Ni) were prepared and tested for vapor phase hydrodeoxygenation of m-cresol at 250–300 °C and 1 atm H2. Calcination at 400 °C followed by reduction at 500 °C of the nickel phyllosilicate… read more here.

Keywords: sio2 catalysts; deoxygenation; cresol; toluene ... See more keywords
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Carbon dioxide methanation over Ni-Cu/SiO2 catalysts

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Published in 2020 at "Energy Conversion and Management"

DOI: 10.1016/j.enconman.2019.112214

Abstract: Abstract CO2 emitted from utilization of fossil fuels has a major contribution to greenhouse effect, turning it into a critical environment issue. Its use as raw material to methanation is gaining much attention, both as… read more here.

Keywords: methanation; carbon dioxide; sio2 catalysts; dioxide methanation ... See more keywords
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Engineering Ni/SiO2 catalysts for enhanced CO2 methanation

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Published in 2021 at "Fuel"

DOI: 10.1016/j.fuel.2020.119151

Abstract: Abstract The CO2 methanation is an important process in coal-to-gas, power-to-gas and CO2 removal for spacecraft. Recently, metal-organic framework (MOF) derivatives have been demonstrated as high-performance catalysts for CO2 upgrading processes. However, due to the… read more here.

Keywords: mof; co2 methanation; sio2 catalysts; engineering sio2 ... See more keywords
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A study of methylcyclohexane cracking in a micro-channel reactor coated with M/SiO2 (M Fe, Co, Ni) catalysts under supercritical conditions

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Published in 2019 at "Journal of Analytical and Applied Pyrolysis"

DOI: 10.1016/j.jaap.2019.104642

Abstract: Abstract A series of transition metals M (M = Fe, Co, Ni) modified SiO2 catalysts were prepared by sol-gel method and coated on the inner wall of stainless steel tubes, in order to develop the micro-channel reactors.… read more here.

Keywords: sio2 catalysts; micro channel; spectroscopy; supercritical conditions ... See more keywords
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Hydrodechlorination and complete degradation of chlorinated compounds with the coupled action of Pd/SiO2 and Fe/SiO2 catalysts: Towards industrial catalyst synthesis conditions

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Published in 2019 at "Journal of Environmental Chemical Engineering"

DOI: 10.1016/j.jece.2019.103014

Abstract: Abstract In this study, Pd/SiO2 and Fe/SiO2 catalysts have been synthesized by the cogelation process for hydrodechlorination applications. Different synthesis conditions were tested to approach the industrial conditions using industrial grade reactants and ambient air… read more here.

Keywords: sio2 catalysts; complete degradation; synthesis conditions; sio2 sio2 ... See more keywords
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Influence of nucleating agent addition on the textural and photo-Fenton properties of Fe(III)/SiO2 catalysts

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Published in 2020 at "Journal of Physics and Chemistry of Solids"

DOI: 10.1016/j.jpcs.2020.109502

Abstract: Abstract Two Fe-based/SiO2 catalysts have been prepared by a sol–gel method, with or without co-gelation with a modified silicon alkoxide, 3-(2-aminoethylamino)propyltrimethoxysilane (EDAS). The aim was to compare these two materials and to study the influence… read more here.

Keywords: photo fenton; iron; sio2 catalysts; influence ... See more keywords
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Biodiesel production via stearic acid esterification over mesoporous ZrO2/SiO2 catalysts synthesized by surfactant-assisted sol-gel auto-combustion route

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Published in 2020 at "Renewable Energy"

DOI: 10.1016/j.renene.2020.06.005

Abstract: Abstract Biodiesel production from the esterification of stearic acid with ethanol catalyzed by the mesoporous ZrO2/SiO2 catalysts which successfully synthesized by surfactant-assisted sol-gel auto-combustion method. These catalysts were characterized by various physico-chemical techniques such as… read more here.

Keywords: esterification; stearic acid; sio2 catalysts; zro2 sio2 ... See more keywords
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Aerosol Route to TiO2–SiO2 Catalysts with Tailored Pore Architecture and High Epoxidation Activity

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Published in 2019 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.8b04843

Abstract: Herein, we present the aerosol-assisted sol–gel preparation of hierarchically porous TiO2–SiO2 catalysts having a spherelike shell morphology and a high Ti dispersion. In order to control the porosity at the micro-, meso-, and macrolevels, we… read more here.

Keywords: epoxidation; sio2 catalysts; architecture; tio2 sio2 ... See more keywords
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Influence of Alkaline and Alkaline Earth Metal Promoters on the Catalytic Performance of Pd–M/SiO2 (M = Na, Ca, or Ba) Catalysts in the Partial Hydrogenation of Soybean Oil-Derived Biodiesel for Oxidative Stability Improvement

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Published in 2018 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.8b01498

Abstract: Palladium/silica (Pd/SiO2) and Pd–M/SiO2 catalysts, where M stands for sodium (Na), calcium (Ca) or barium (Ba), were studied for their catalytic ability in the partial hydrogenation of soybean oil-derived fatty acid methyl esters (SO-FAMEs) using… read more here.

Keywords: sio2; partial hydrogenation; sio2 catalysts; hydrogenation soybean ... See more keywords