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Buyanov, R. A.; Пахомов, Н. А.

doi:10.1023/a:1004852829938

Cited by 53 publications

(24 citation statements)

References 5 publications

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“…[1][2][3] Ru-Sn catalyst has been recognized as a promising system for selective hydrogenation of a carbonyl group. 4 The selectivity is explained in terms of a strong interaction between the C = O group with the tin oxide.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen mediated transport of Sn to Ru film surface

Faradzhev

Sidorkin

2009

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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The authors report on the interaction of atomic hydrogen with Sn and thin Ru film at room temperature. The study is done using a combination of photoelectron and low energy ion scattering spectroscopies as well as scanning electron microscopy. The adsorption of hydrogen on a Sn surface leads to the formation of stannane ͑SnH 4 ͒, which dissociatively adsorbs on the surface of polycrystalline Ru film. In the range of effective Sn coverages studied ͑up to 1 ML͒, the resulting overlayer consists of randomly distributed three-dimensional islands with average size below 40 nm occupying up to several percent of the surface area. Nucleation of Sn is observed presumably at defect sites ͑e.g., grain boundaries͒. Ion scattering data are found consistent with Volmer-Weber growth mode: no initial transition wetting layer formation is detected. Oxidation of Sn islands on a Ru surface at room temperature results in the formation of SnO. Neither metallic nor oxidation states of Sn higher than Sn 2+ are observed by photoelectron spectroscopy.

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Section: Introductionmentioning

confidence: 99%

Hydrogen mediated transport of Sn to Ru film surface

Faradzhev

Sidorkin

2009

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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“…The annual bulk volume of olefins, without propylene, produced by dehydrogenation in Russia is 600,000-700,000 tons. The world industry utilizes several processes for dehydrogenation of C 3 -C 5 paraffins using different production engineering and catalysts [1][2][3][4][5]. Thus, about one half of the known processes use Cr 2 O 3 /Al 2 O 3 (Cr 2 O 3 is the active component) as a catalyst.…”

Section: Introductionmentioning

confidence: 99%

Dehydrogenation of C3–C4 paraffins on Cr2O3/Al2O3 catalysts in fluidized and fixed bed reactors

Пахомов

Kashkin

Nemykina

et al. 2009

Chemical Engineering Journal

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“…[1][2][3][4][5][6][7][8][9][10][11] or hydrogenation of unsaturated organic feedstocks [12,13]. Complex oxides (e.g., AB 2 O 4 spinels) have better resistance against sintering/steam than simple oxides (e.g., silica or alumina) and can minimize the formation of metal-support compounds [14,15]. To develop complex oxide-supported cobalt (or iron) nanocomposites may be promising to better fit the steam conditions of FTS or FTO (FTS to olefins) and avoid the formation of unfavorable metal-support compounds [16].…”

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confidence: 99%

Effects of Water Addition on CO Hydrogenation Over Zinc-Containing Spinel-Supported Cobalt Catalyst

Liu

Xue

et al. 2015

Catal Lett

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Literature about water addition over AB 2 O 4 spinel-supported cobalt CO hydrogenation catalysts is sparse. A comparative water addition experiment was conducted over Co/ZnAl 2 O 4 ÁAl 2 O 3 catalyst. Water addition may cause lower C 1 (i.e., CH 4 ) hydrocarbon distribution, lower C 2 -C 4 hydrocarbon distribution, higher C 5? hydrocarbon distribution and higher C 2 -C 4 olefin/paraffin ratio than the control test without water addition. Possibly, as a product of Fischer-Tropsch synthesis, water might have an autocatalytic effect for the FTS process to generate longer chain hydrocarbons via its facilitation of C-C coupling. The Co/ZnAl 2 O 4 ÁAl 2 O 3 catalyst exhibits good resistance against steam sintering. Graphical Abstract0 2000 4000 6000 10 20 30 40 50 60 70 80 90

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Cited by 53 publications

References 5 publications

Hydrogen mediated transport of Sn to Ru film surface

Hydrogen mediated transport of Sn to Ru film surface

Dehydrogenation of C3–C4 paraffins on Cr2O3/Al2O3 catalysts in fluidized and fixed bed reactors

Effects of Water Addition on CO Hydrogenation Over Zinc-Containing Spinel-Supported Cobalt Catalyst

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