Papers by Alexey Pestryakov
Journal of Electron Spectroscopy and Related Phenomena, Nov 1, 1995
ABSTRACT
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Advanced Materials Research, Aug 1, 2012
Dynamics of modernization and particularities of suspension production of polypropylene at Tomskt... more Dynamics of modernization and particularities of suspension production of polypropylene at Tomskteftekhim Company has been presented. Results of commercialization of polymerization catalysts of 2nd and 4th generation have been analyzed.
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Surface Science, 2005
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Russian Journal of Applied Chemistry, May 10, 1994
Catalysts based on ultradispersed powders of complex oxides of transition metals have been invest... more Catalysts based on ultradispersed powders of complex oxides of transition metals have been investigated in low-temperature exhaustive oxidation of organic compounds. Active catalytic compositions have been identified; the influence of process parameters upon the efficiency of the process has been studied. Catalysts have been compared in oxidation at high and low temperatures.
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Advanced Materials Research, Aug 1, 2012
Results of development of high-pressure process of low-density polyethylene production at “Tomskn... more Results of development of high-pressure process of low-density polyethylene production at “Tomskneftekhim” Company have been presented. New technology allowed increasing productivity, product quality, extending polymer assortment. Comparison with designed indexes and the ones at other Russian and world companies has been done.
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Reaction Kinetics and Catalysis Letters, May 1, 1992
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1. A.A. Davydov, Infrared Spectroscopy of Adsorbed Species on the Surface of Transition Metal oxi... more 1. A.A. Davydov, Infrared Spectroscopy of Adsorbed Species on the Surface of Transition Metal oxides, Wiley, New York, 1990.
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Procedia Chemistry, 2014
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medRxiv (Cold Spring Harbor Laboratory), May 22, 2021
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Catalysis Today, Dec 1, 2016
Abstract This work aims to further the understanding of gold-based catalytic oxidation of n-octan... more Abstract This work aims to further the understanding of gold-based catalytic oxidation of n-octanol in liquid phase. Modification of catalysts with metal oxides additives (Fe or Mg) was used as a tool for transforming and stabilizing gold species. Structural, electronic and catalytic properties of gold catalysts were systematically investigated by means of DRS, H2, CO FTIR, SBET, EDS and SEM, HRTEM, SR-XRD, XANES, XPS and liquid phase n-octanol oxidation. Addition of modifiers affects Au electronic properties, but not the structural ones. Characterization results allow excluding Au3+ ions as candidates for active sites in n-octanol oxidation. In Au/Mg/TiO2, gold exhibited more reduced states while in Au/Fe/TiO2 gold was more oxidized; Au/TiO2 for intermediate oxidized states was found. The proper balance of oxidation states in the gold surface of Au/Mg/TiO2 can be responsible for its higher activity compared with Au/Fe/TiO2 and Au/TiO2 towards n-octanol oxidation. Finally our approach shed light on the nature of active sites for n-octanol oxidation on gold and furthers the development of green base-free catalytic oxidation of alcohols.
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Catalysis Communications, Jul 1, 2003
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Colloid and Interface Science Communications, Jul 1, 2020
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Chemosphere, Feb 1, 2017
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Reaction Kinetics and Catalysis Letters, 1995
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Applied Catalysis A-general, Dec 1, 1994
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Applied Mechanics and Materials, Apr 1, 2015
This study presents the results of polymeric deposit analysis from propylene washing column of «S... more This study presents the results of polymeric deposit analysis from propylene washing column of «Spheripol» process polymerization unit using such methods as gel-permation chromatography, differential scanning calorimetry (DSC), X-ray phase analysis, IR and NMR13C-spectroscopy and analytical process control methods. For comparison the relative data for larger volume polypropylene grades have been presented as well. Based on the findings and available similar practice in a slurry process an assumed formation mechanism was proposed for the discussion.
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The Royal Society of Chemistry eBooks, 2007
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Catalysis Letters, Aug 1, 2019
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Papers by Alexey Pestryakov