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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Chemistry and technology of fuels and oils 22 (1986), S. 606-609 
    ISSN: 1573-8310
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Chemistry of heterocyclic compounds 2 (1967), S. 118-119 
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Difurylmethyl- and dimethylfurylvinylsilanes are synthesized. With 2% of ethyllithium they give solid polymers, unchanged on heating to 350°. Views, based on IR spectra, are offered regarding their structures.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 2 (1975), S. 211-215 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Проведены термодесорбционные исследования взаимодействия пропилена и кислорода на твердых растворах CoO−MgO. Получены значения энергии активации десорбции, Ed, для 12% CoO−MgO 1,5% CoO−MgO и MgO рав ные 10,5, 6,5 и 8,8 ккал/моль, соответственно. Показано, что предварительнчя адсорбция кислоропа или совместная алсорбция кислорода на исследованных твердых растворах приводит к необратимой адсорбции пропилена.
    Notes: Abstract Thermodesorption studies on the interaction of propylene and oxygen over solid CoO−MgO solutions have been carried out. The activation energy of desorption, Ed, for 12% CoO−MgO, 1, 5% CoO−MgO and MgO samples was found to be 10.5, 6.5 and 8.8 kcal/mol, respectively. Pre-adsorption of oxygen or simultaneous adsorption of propylene and oxygen were shown to lead to irreversible adsorption of propylene on the solid solutions.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 4 (1976), S. 269-274 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract С помощью квантово-химического метода изучались взаимодействие пропилена и кислорсда с ионами Co2+, Co3+ и Mg2+ на поверхности решетки MgO, а также адсорбция заряженной формы O 2 − и п-аллиьного радикала. Показано, что адсорбция пропилена должна происходить более прочно на ионах Co3+, чем на ионах Co2+ и Mg2+. В противо-положность пропилену кислород адсорбируется более прогно на ионах Co2+ с последующим электронным переносом на молекулу кислорода. Полученные результаты сопоставлены с экспериментальными данными.
    Notes: Abstract The interaction of propene and oxygen with Co2+, Co3+ and Mg2+ ions on the MgO lattice surface, as well as the adsorption of charged forms of O 2 − and π-allyl radical have been studied by a quantum-chemical method. Propene adsorption has been found to be stronger on Co3+ than on Co2+ and Mg2+ ions. Unlike propene, oxygen is adsorbed more strongly on Co2+ ions with subsequent electron transfer to an oxygen molecule. The data obtained are compared with experimental results.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract ВодорастворимЫе аналоги гетерополимолибдата алюминия и кобальта оказались возможнЫми Предшественниками активнЫх центров вместе с другими молибденовЫми соединениями в гидродесульфурировании тиофена. БЫла использована спектроскопия Памана и измерение каталитической активности.
    Notes: Abstract Water soluble analogues of aluminium and cobalt heteropolymolybdates have been shown as possible precursors of active sites for thiophene hydrodesulfurization along with other molybdenum compounds. For the characterization of the catalysts Raman spectroscopy has been applied, and the catalytic activity of the samples is discussed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследовано влияние дисперсности нанесенного палладия на каталитическую активность в реакциях гидрирования и окислительной димеризации стирола. Обнаруженное влияние дисперсности на реакцию окислительной димеризации обясняется влиянием дисперсности палладия на адсорбцию кислорода.
    Notes: Abstract The effect of dispersity of supported palladium catalysts on the catalytic activity for hydrogenation and oxidative coupling of styrene has been studied. Changes in the catalytic activity for oxidative coupling are interpreted in terms of the dependence of oxygen adsorption on metal dispersity.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract При исследовании взаимодействия трет-бутилового спирта и дитрет-бутилового пероксида с SiO2, обработанного KCl с помощью температурно-программированной десорбции, наблюдалась „пульсирующая” десорбция (осциллирующее поведение).
    Notes: Abstract In the study of the interaction of tertiary-butyl alcohol and di-tertiary-butyl peroxide with SiO2 treated with KCl by means of temperature programmed desorption, “pulsation” desorption (oscilatory behavior) is observed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 35 (1987), S. 391-402 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Concluding remarks The examples we have discussed indicate that it is possible, on the basis of quantum-chemical description of the interaction between energy levels, to explain many processes in heterogeneous catalysis. The division into electronic and geometrical factors appeared historically, as an analysis of the processes, with the aim to simplify their understanding. The present development of the theory of catalysis shows that achieving of the basic goal, e.g. explanation and prediction of the properties of catalytic systems necessitate a synthesis between the components and the mechanism of their action. Undoubtedly, this synthesis can be carried out successfully only upon recognition of the decisive role of electron factor.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 4 (1976), S. 275-279 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Методом ЭПР показано, что на поверхности 1% CoO−MgO после подачи на образец импульсов кислорода при комнатной температуре образуются ион-радикалы O 2 − с gI=2.0085 и gII=2.087. Нагревание образца в резонаторе спектрометра до 150 °C приводит к полному исчезновению в ЭПР-спектрах сигнала O 2 − . Получена зависимость изменения интенсивности сигнала O 2 − во времени как результат взаимодействия адсовбированных пропилена и кислорода на поверхности образца.
    Notes: Abstract An ESR study has shown that under the action of oxygen pulses, radical ions O 2 − with gI=2.0085 and gII=2.087 are generated at room temperature on the surface of 1% CoO−MgO. Heating of the sample to 150 °C in the spectrometer results in complete disappearance of the O 2 − signal from the ESR spectra. The variation of the O 2 − signal intensity with time due to the interaction between propene and oxygen adsorbed on the sample surface, has been measured.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 16 (1981), S. 201-205 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследовано влияние газа-носителя (H2, N2, CO2 и воздух) и воздействие некоторых добавок (H2S и водяные пары) при предварительной обработке цеолитных катализаторов, содержащих Ni и Cr, на их каталитическую активность в реакции превращения толуола.
    Notes: Abstract The effect of the carrier-gas (H2, N2, CO2 and air) and the influence of additives (H2S and water vapors) in the activation of Ni- and Cr-containing zeolites on their catalytic activity have been studied in toluene disproportionation.
    Type of Medium: Electronic Resource
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