Authors:Yuelun Wang, Bo Hou, Debao Li, Jiangang Chen, and Yuhan Sun
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
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
, 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
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
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
Authors:Seung-Ho Kwack, Myung-June Park, Jong Wook Bae, Kyoung-Su Ha, and Ki-Won Jun
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
Authors:Alexander Pokutsa, Andriy Zaborovskiy, Daria Maksym, Jacques Muzart, Roman Makitra, Olena Pal’chykova, Volodymyr Kopylets, Ruslan Prystanskiy, and Tomasz Paczeŝniak
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.
Authors:Hossein Eshtiagh-Hosseini, Mohammad Housaindokht, and Samad Shoghpour
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.
Authors:Yuelun Wang, Bo Hou, Jiangang Chen, and Yuhan Sun
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
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