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JournalISSN: 1876-214X

The Open Catalysis Journal 

Bentham Science Publishers
About: The Open Catalysis Journal is an academic journal. The journal publishes majorly in the area(s): Catalysis & Ruthenium. It has an ISSN identifier of 1876-214X. It is also open access. Over the lifetime, 87 publications have been published receiving 637 citations.

Papers published on a yearly basis

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Journal ArticleDOI
TL;DR: In this paper, a comparison of catalytic systems employed in the production of syngas by the catalytic partial oxidation of methane, as well as experimental evidences on the reaction mechanisms are examined.
Abstract: Natural gas is catalytically converted into several bulk chemicals such as ammonia, methanol, dimethyl ether, and synthetic liquid fuels by Fischer-Tropsch synthesis and similar processes. The main step in the conversion of natural gas to these products is the production of synthesis gas with the desired composition ranging from H2/CO = 3:1 used for the production of ammonia to the 1:1 mixture preferred for production of dimethyl ether. Catalysts and catalytic processes are important in the production of synthesis gas from natural gas. In this work, relevant catalytic systems employed recently in the production of syngas by the catalytic partial oxidation of methane, as well as experimental evidences on the reaction mechanisms are examined. Differences in methane dissociation, binding site preferences, stability of OH surface species, surface residence times of active species and contributions from lattice oxygen atoms and support species are considered. The methane dissociation requires reduced metal sites, but at elevated temperatures oxides of active species may be reduced by direct interaction with methane or from the reaction with H2 and CO (or C). The comparison of elementary reaction steps on Pt and Rh illustrates the fact that a key factor to produce hydrogen as primary product is a high activation energy barrier to the formation of OH. Another essential property for the formation of H2 and CO as primary products is a low surface coverage of intermediates, such that the probability of O-H, OH-H and CO-O interactions is reduced.

76 citations

Journal ArticleDOI
TL;DR: In this paper, H-Indazolo(2,1-b)phthalazine-1,6,11(13H)-trione derivatives were synthesized in a simple and efficient method from the three-component condensation reaction of phthalhydrazide, dimedone, and aromatic aldehydes by H3PW12O40 in ionic liquid in good to excellent yields and short reaction times.
Abstract: H-Indazolo(2,1-b)phthalazine-1,6,11(13H)-trione derivatives were synthesized in a simple and efficient method from the three-component condensation reaction of phthalhydrazide, dimedone, and aromatic aldehydes by H3PW12O40 in ionic liquid in good to excellent yields and short reaction times. The ionic liquid 1-butyl-3- methylimidazolium tetrafluoroborate ((bmim)BF4) offered the best results in terms of yield of the products. It was observed that a homogeneous reaction medium proved beneficial for the yield of the reaction.

48 citations

Journal ArticleDOI
TL;DR: In this paper, a review of different groups of organic compounds, with hydroperoxides catalyzed by non-heavy metal containing low-molecular-weight compounds and enzymes is presented.
Abstract: Oxidation of different groups of organic compounds, with hydroperoxides catalyzed by non-heavy metal containing low-molecular-weight compounds and enzymes is reviewed. This article is concentrated mainly on the hydrogen peroxide and tert-butyl hydroperoxide, however other less common hydroperoxides are also mentioned. Since hydroperoxides themselves are inactive toward most of the organic substrates, in situ activation of the oxidant is necessary. For this purpose various activators have been applied in stoichiometric or catalytic amounts. The carboxylic acids, nitriles, amides and urea are representative for the first category. The organocatalysts such as � -halo carbonyl compounds, ketones, imines, iminium salts, nitroxyl radicals and polyaminoacids, selenium compounds and enzymes are presented. They are involved in oxygen, and electron transfer processes whose mechanisms are briefly discussed, and their applications in laboratory and industrial synthesis are indicated.

36 citations

Journal ArticleDOI
TL;DR: In this article, a remarkable acceleration in the synthesis of substituted coumarins via Pechmann reaction catalyzed by silica gel supported sulfuric acid (H2SO4/silica gel) at 120 °C in high yields under solvent-free reaction condition with short re- action times is described.
Abstract: A remarkable acceleration in the synthesis of substituted coumarins via Pechmann reaction catalyzed by silica gel supported sulfuric acid (H2SO4/silica gel) at 120 °C in high yields under solvent-free reaction condition with short re- action times is described. This methodology offers momentous improvements over various options for the synthesis of coumarins with regard to yield of products, simplicity in operation and green aspects by avoiding toxic catalysts and sol- vents.

28 citations

Journal ArticleDOI
TL;DR: In this article, a simple experimental procedure, short reaction times (40-120 min), and excellent yields (81-94%) are the advantages of the present method, which was used as an efficient catalyst for the synthesis of xanthene derivatives under solvent-free conditions.
Abstract: Polytungstozincate acid was prepared from sodium polytungstozincate and after formulation, Na3H9(WZn3(H2O)2(ZnW9O34)2), was used as an efficient catalyst for the synthesis of xanthene derivatives under solvent- free conditions. The simple experimental procedure, short reaction times (40-120 min.), and excellent yields (81-94%) are the advantages of the present method.

24 citations

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Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
20151
20144
20135
20129
20119
201029