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  • 1990-1994  (13)
  • 1985-1989  (14)
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  • 1
    Electronic Resource
    Electronic Resource
    Reactive properties of phosphine complexes of some transition metals in ethylene carbonylation (1986)
    Springer
    Reaction kinetics and catalysis letters 31 (1986), S. 61-64 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследованы каталитические свойства соединений переходных металлов VIII группы, а также Cu, Ag, Au и Hg в реакции синтеза диэтилкетона из этилена, окиси углерода и водорода в концентрированном водном растворе трифторуксусной кислоты, содержащем трифенилфосфин, в мягких условиях (70°C, 1 бар). Установлено, что в этих условиях кроме ацетата Pd только соединения Pt и Rh проявляют заметную активность в синтезе диэтилкетона.
    Notes: Abstract Catalystic properties of Group VIII transition metals and Cu, Ag, Au and Hg compounds in diethylketon synthesis from ethylene, carbon monoxide and hydrogen in concentrated aqueous solutions of trifluoroacetic acid containing triphenylphosphine have been examined in mild conditions (70°C, 1 bar). It has been established that under these conditions, in addition to Pd axcetate, a noticeable activity in diethylketone synthesis is observed only for Pt and Rh compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02062512
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  • 2
    Electronic Resource
    Electronic Resource
    New carbon material as support for catalysts (1987)
    Springer
    Reaction kinetics and catalysis letters 33 (1987), S. 435-440 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследована структура и адсорбционные свойства новых углеродных носителей, полученных на основе технического углерода, которые обладают преимущественно мезопористой структурой, развитой поверхностью и высокой механической прочностью. Носитель состоит из глобул. Глобуль внутри пустье и стенки глобул имеют отверстия размером несколько сотен Å. Новый углеродный материал представляет интерес для фундаментального исследования катализаторов на углеродных носителях.
    Notes: Abstract Structure and adsorption properties of new carbon carriers obtained on the basis of carbon black have been examined. These carriers possess largely mesoporous structure, developed surface and high mechanical strength and contain hollow globules. Walls of these globules have pores, whose size is several hundreds Å. The new material is of interest for fundamental studies of carbon-supported catalysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02128102
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  • 3
    Electronic Resource
    Electronic Resource
    Generation of chemical reaction mechanism. CO hydrogenation catalyzed by meaal atoms in the gas phase (1988)
    Springer
    Reaction kinetics and catalysis letters 36 (1988), S. 139-143 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract С использованием алгоритма на основе математической модели структурной химии разработан подход для оценки каталитических свойств атомов метомов металлов в процессе гидрирования окиси углепода в газовой фазе. Получены структуры и энергетические характеристики промежуточных соединений и возможиых продуктов в процессе каталитического гидрирования окиси углерода до C1 и C2-органических соединеиий. Определены металлы, катализирующие реакци№ до образоваия различнях продуктов.
    Notes: Abstract An approach to determine the catalytic properties of metal atoms for the hydrogenation of CO in the gas phase is suggested. This approach has been developed using an algorithm based on a mathematical model for structural chemistry. Structural and energetic characteristics for intermediates and possible products of the catalytic hydrogenation of CO to C1 and C2 organic compounds and metals established as catalysts for the formation of various products are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02071154
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation of palladium catalysts via thermal decomposition of supported Pd(O) complexes (1989)
    Springer
    Reaction kinetics and catalysis letters 38 (1989), S. 109-114 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Найдено, что термолиз комплекса Pd(O) с дибензилиденацетоном на углеродном носителе обеспечивает образование более однородных Pd кристаллитов и одинаковую или более высокую активность катализаторов в гидрировании гексена и нитробензола, чем традиционные способы приготовления катализаторов из PdCl2.
    Notes: Abstract Heat treatment of the Pd(O) complex of dibenzylidenacetone on carbon supports was found to afford formation of more uniform Pd particles and an equal or higher activity of samples in hydrogenation of hexene and nitrobenzene compared to conventional methods of catalyst preparation from PdCl2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02126261
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  • 5
    Electronic Resource
    Electronic Resource
    Gas-phase hydroformylation of propylene on Ru/SiO2 catalysts (1991)
    Springer
    Reaction kinetics and catalysis letters 44 (1991), S. 139-146 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Катализаторы Ru/SiO2, приготовленные восстановлением нанесенного RuCl3·xH2O, активны в реакции газофазного гидроформилирования пропилена при низких (∼0,3 МПа) давлениях реакционной смеси и проявляют неожиданно высокую селективность в образовании оксо-продуктов линйного строения. Получены данные о влиянии состояния и дисперсности рутения на свойства щтих катализаторов.
    Notes: Abstract Ru/SiO2 catalysts prepared by reduction of supported RuCl3·xH2O are active in gas-phase hydroformylation of propylene at low pressure (ca. 0.3 MPa) of H2+CO+C3H6 mixtured and show unexpectedly high selectivity towards unbranched oxo-products. Data concerning the effect of electronic state and dispersity of Ru on their catalytic behavior have been obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02068397
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  • 6
    Electronic Resource
    Electronic Resource
    Liquid-phase oxidation of propylene to propylene glycol acetates over Pd/C and Pt−Pd/C: Effect of platinum on catalyst activity and metal dispersity (1992)
    Springer
    Reaction kinetics and catalysis letters 47 (1992), S. 279-286 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Изучена кинетика окисления пропилена в пропиленгликоль и его ацетаты в уксуснокислых растворах нитрата лития на каталиэаторах Pd/C и Pd−Pt/C. Катализаторы исследованы методами РФА и электронной микроскопии. Показано, что введение в состав катализаторов платины приводит к увеличению дисперсности металлических частиц и стабильности катализаторов, но не влияет на природу поверхностных центров, активных в реакции окисления пропилена.
    Notes: Abstract Kinetics of oxidation of propylene to propylene glycol and its acetates in acetic acid solutions of lithium nitrate over Pd/C and Pd−Pt/C catalysts has been studied. Catalysts were investigated using X-ray phase analysis and electron microscopy. Platinum introduction into catalyst increases the metal dispersity and the catalyst stability but produces no effect on the nature of surface sites active in propylene oxidation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02137661
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  • 7
    Electronic Resource
    Electronic Resource
    Structural and substructural parameters of carbon supports sibunit and altunit (1992)
    Springer
    Reaction kinetics and catalysis letters 47 (1992), S. 311-317 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Рентгенографическими методами изучены два углеродных материала — сибунит и алтунит. Показано, что область когерентного рассеяния сибунита представляет собой глобулу диаметром 35 Å, в которой сохраняется слоистая структура графита с азимутальной разориентацией графитовых сеток. Алтунит имеет алмазную структуру, состоит из мелких частиц со средним размером 20 Å, лишенных микроискажений и характеризующихся узким распределением по размерам.
    Notes: Abstract Two carbon material — sibunit and altunit have been studied using X-ray phase analysis methods. Coherent scattering region of Sibunit is a globule with a diameter of 35 Å, which preserves a stratified structure of graphite with the azimutal disorientation of graphite networks. Altunit has a diamond structure and consists of small particles with the average size of 20 Å, having no microstrains and characterized by a narrow size distribution of particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02137666
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  • 8
    Electronic Resource
    Electronic Resource
    Structure sensitivity of Fe(II) oxidation on palladium and platinum catalysts (1994)
    Springer
    Reaction kinetics and catalysis letters 52 (1994), S. 385-392 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The oxidation of ferrous sulfate with dioxygen, an example of an inorganic redox process in aqueous phase, has been studied on a number of carbon-supported Pd and Pt catalysts, both freshly reduced and kept for a long time after contacting with air. In the whole range of metal dispersities studied (0.10–0.75, as determined by CO chemisorption) a several-fold gradual loss of intrinsic activity has been found when increasing the dispersity. Such a decrease appeared sufficient to present volcanotype plots for the corresponding activities on a per-gram basis. It has been concluded that the metal particle size and oxidation state of the metallic surface are two independently acting factors which affect the intrinsic rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02067812
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  • 9
    Electronic Resource
    Electronic Resource
    Influence of alkaline and acidic promoters on the catalytic properties of metallic palladium and rhodium in CO hydrogenation (1986)
    Springer
    Reaction kinetics and catalysis letters 31 (1986), S. 55-60 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследовано влияние добавок щелочей и кислот на состав продуктов гидрирования окиси углерода на металлических палладии и родии, нанесенных на силикагель. Показано, что добавки щелочи увеличивают выход метанола, а добавки кислоты —этанола.
    Notes: Abstract Influence of alkaline and acidic promoters on the composition of CO hydrogenation products on SiO2-supported metallic palladium and rhodium has been examined. Alkaline and acidic promoters have been established to increase the yield of methanol and ethanol, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02062511
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  • 10
    Electronic Resource
    Electronic Resource
    Pt catalyst for the liquid-phase epoxidation of cyclohexene with an O2/H2 mixture (1989)
    Springer
    Reaction kinetics and catalysis letters 38 (1989), S. 205-208 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Найдены условия приготовления Pt катализатора для реакции окисления циклогексена кислородом в присутствии водорода с образованием зпоксида.
    Notes: Abstract Conditions are found for the preparation of Pt catalysts providing the formation of epoxy-derivative in the reaction of cyclohexene with an O2/H2 mixture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02126276
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