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Introduction Fischer–Tropsch synthesis (FTS) is a part of gas-to-liquids (GTL) technology, which produces clean fuels from natural gas. Cobalt-based FTS catalysts are usually preferred for the synthesis of long-chain paraffins

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Introduction Raney metal type catalysts are prepared by leaching the reactive material out from alloys of catalytically active transition metals such as nickel, cobalt, iron, copper and a reactive material such as aluminum with

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Soipatta Soisuwan, Benjamas Netiworaruksa, Channarong Charoendechanukor, Tassanee Tubcharoen, Joongjai Panpranot, and Piyasan Praserthdam

, the potential commercial cobalt catalysts are typically composed of four components: Co metal, a small amount of a second metal, oxide promoters (alkali, rare earth, and/or transition metal oxide such as ZrO 2 ) and supports (silica, alumina or titania

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synthesis and characterization of cobalt(0) nanoclusters stabilized by HPO 4 2− or poly(acrylic acid), PAA, as well as their use as catalysts in hydrogen generation from the hydrolysis of sodium borohydride (NaBH 4 ). The HPO 4 2− ion was preferred as an

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Natpakan Srisawad, Wasu Chaitree, Okorn Mekasuwandumrong, Artiwan Shotipruk, Bunjerd Jongsomjit, and Joongjai Panpranot

cobalt FTS catalysts are prepared by the incipient wetness impregnation of aqueous solutions of cobalt salts onto the porous oxide supports followed by thermal decomposition of cobalt salts via calcination in an oxidizing atmosphere and reduction in

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under high pressure. Therefore, Fe and Co are considered most adequate for commercial processes. Cobalt-based catalysts have been successfully used commercially because they show high activity and selectivity for heavy hydrocarbons. Other benefits of Co

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Alexander Pokutsa, Andriy Zaborovskiy, Daria Maksym, Jacques Muzart, Roman Makitra, Olena Pal’chykova, Volodymyr Kopylets, Ruslan Prystanskiy, and Tomasz Paczeŝniak

Abstract  

The kinetics of H2O2 cleavage catalyzed by cobalt(II)-acetylacetonate has been studied at 40 °C in water, acetic acid, acetonitrile, tetrahydrofuran, 2-propanol, t-butanol, morpholine, and 1,4-dioxane by kinetic and spectroscopic techniques. As revealed, the nature of the solvent has a decisive influence on process. Medium polarizability and polarity have been found to be the rate determining factors.

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Abstract  

An efficient and convenient method is reported for the selective aerobic oxidation of thiols to the corresponding disulfides using NiO/MgO/SiO2 (15 wt% NiO, Si/Mg = 3) supported cobalt(II) tetrasulfophthalocyanine as the catalyst in ethyl acetate at room temperature. The method is applicable to aromatic, aliphatic, and heterocyclic thiols. The catalyst can be recycled and reused for several times without any significant loss of its catalytic activity.

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Introduction The Fischer–Tropsch (FT) synthesis is a process of hydrocarbon production from carbon monoxide and hydrogen. Cobalt-supported catalysts are currently preferred over Fe-based systems due to their superior

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Reaction Kinetics, Mechanisms and Catalysis
Authors: R. Thinesh Kumar, N. Clament Sagaya Selvam, T. Adinaveen, L. John Kennedy, and J. Judith Vijaya

. Cobalt aluminate (CoAl 2 O 4 ) is a transition metal aluminate spinel with aluminum in octahedral sites and cobalt in tetrahedral ones [ 2 ]. It is well known as Thenard's blue for its impressive optical effect. It is widely used for coloring plastics

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