Peculiarities of the Active Component Formation in Alumina-Supported Copper Molybdate Catalysts for Soot Combustion

A series of novel catalysts with three-dimensionally ordered macroporous structures and active-component nanoparticles, exhibiting excellent catalytic performance for soot combustion, were fabricated.

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Protection from Hg-Inactivation of Factor XIII by Mercaptalbumin

Thrombosis and Haemostasis ◽

10.1055/s-0038-1654244 ◽

1970 ◽

Vol 24 (03/04) ◽

pp. 352-355 ◽

Cited By ~ 2

Author(s):

P Fantl

Keyword(s):

Blood Plasma ◽

Factor Xiii ◽

Active Component ◽

Plasma Albumin ◽

Plasma Factor ◽

Mercuric Ions

SummaryThe blood plasma factor XIII (fibrin stabilizing factor) is inactivated by mercuric ions and can be reactivated by serum - or plasma albumin of which the active component is mercaptalbumin. A relation between mercaptalbumin concentration and factor XIII activity is pointed out.

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Histopathological and morphological alterations in salivary gland of House fly induced by oral administration Thiamethoxam.

Kurdistan Journal of Applied Research ◽

10.24017/science.2018.1.8 ◽

2018 ◽

Vol 3 (1) ◽

pp. 40-44 ◽

Cited By ~ 1

Author(s):

Karim Mohammed Xider

Keyword(s):

Salivary Gland ◽

Cell Membrane ◽

Oral Administration ◽

Peak Concentration ◽

Active Component ◽

House Fly ◽

Morphological Alterations ◽

Gland Tissue ◽

Gland Duct ◽

Feeding Process

The current work the effect of Actara insecticide belongs to chemical family Neonicotinoid. The active component of thiamethoxam in three concentrations: 0.750 ppm, 1.5 ppm and 2.25ppm on adult house fly salivary glands. Histopathological and morphological effects revealed important alterations produced by this insecticide in histological and morphology of the adult house fly gland tissue categorized by increasing gland duct lumen diameter. These alterations are possibly related with excretion function of salivary gland might be accountable for removing this insecticide. Results show thiamethoxam is a powerful insecticide that performances histologically in salivary glant tissue, triggering alterations in the glands form, cytoplasm with extreme vacuolation ,disruption cell membrane, obvious disorganization tissues cells, terminating in progressive deteriorating phase with changes in nucleus glandular cell's, such alterations occurred together in its size and form of gland, disintegration of nucleus, and presence of apoptosis(fragmentation) nucleus, accelerating the process of glandular degeneration ,and interfering with feeding process of house fly particularly when the peak concentration of insecticide was used.

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Active Component Support to Reserve Component Training, Changes to Training Support XXI

10.21236/ada414947 ◽

2003 ◽

Author(s):

Richard E. Arnold

Keyword(s):

Active Component ◽

Training Support ◽

Reserve Component ◽

Component Training

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Preparation and Evaluation of Skeletal Cobalt-Molybdenum Hydrodesulfurization Catalysts

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19950568 ◽

1995 ◽

Vol 60 (4) ◽

pp. 568-575

Author(s):

Karel Sporka ◽

Jiří Hanika ◽

Vladimír Jůn

Keyword(s):

Aqueous Solutions ◽

Active Component ◽

Catalyst Activity ◽

Gas Oil ◽

Gamma Alumina ◽

Molybdenum Sulfides ◽

Hydrodesulfurization Catalysts ◽

Hds Catalysts ◽

Kinetics Of ◽

Preparation And Evaluation

Preparation of skeletal Co-Mo catalysts by controlled impregnation of aluminosilicate skeletons containing deposited gamma-alumina with aqueous solutions of active component precursors has been investigated. The activity of the laboratory catalysts in gas oil hydrodesulfurization has been determined. Kinetics of impregnation of skeletal supports, the effect of their type, and the dependence of catalyst activity on the content of cobalt and molybdenum sulfides are reported. HDS skeletal catalysts prepared were compared with the extruded types. It was found that skeletal HDS catalysts show the higher activity (related to the content of alumina and Co-Mo sulfides) than the extruded ones due to the less significant effect of internal diffusion. However, if the activity is related to the same volume of catalyst bed, the activity of skeletal catalysts is only one fourth of that of the extruded types.

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Catalyst Selection for Hydrogenation of 1,2-Dihydroacenaphthylene

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19981945 ◽

1998 ◽

Vol 63 (11) ◽

pp. 1945-1953 ◽

Cited By ~ 2

Author(s):

Jiří Hanika ◽

Karel Sporka ◽

Petr Macoun ◽

Vladimír Kysilka

Keyword(s):

Activation Energy ◽

Nickel Catalyst ◽

Palladium Catalyst ◽

Active Component ◽

Reaction Order ◽

Nickel Catalysts ◽

Practical Application ◽

Repeated Use ◽

Selection For ◽

Catalyst Selection

The activity of ruthenium, palladium, and nickel catalysts for the hydrogenation of 1,2-dihydroacenaphthylene in cyclohexane solution was studied at temperatures up to 180 °C and pressures up to 8 MPa. The GC-MS technique was used to identify most of the perhydroacenaphthylene stereoisomers, whose fractions in the product were found dependent on the nature of the active component of the catalyst. The hydrogenation was fastest on the palladium catalyst (3% Pd/C). The nickel catalyst Ni-NiO/Al2O3, which is sufficiently active also after repeated use, can be recommended for practical application. The activation energy of 1,2-dihydroacenaphthylene hydrogenation using this catalyst is 17 kJ/mol, the reaction order with respect to hydrogen is unity.

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PrOx nanoparticles: active and stable catalysts for soot combustion

Applied Surface Science ◽

10.1016/j.apsusc.2021.150183 ◽

2021 ◽

pp. 150183

Author(s):

Begoña Sellers-Antón ◽

Esther Bailón-García ◽

Arantxa Davó-Quiñonero ◽

Dolores Lozano-Castelló ◽

Agustín Bueno-López

Keyword(s):

Soot Combustion

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Highly reactive and thermally stable Ag/YSZ catalysts with macroporous fiber-like morphology for soot combustion

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2021.120271 ◽

2021 ◽

Vol 294 ◽

pp. 120271

Author(s):

Hanying Liang ◽

Baofang Jin ◽

Min Li ◽

Xiaoxian Yuan ◽

Jie Wan ◽

...

Keyword(s):

Thermally Stable ◽

Soot Combustion

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Three-dimensionally ordered macroporous spinel-type MCr2O4 (M = Co, Ni, Zn, Mn) catalysts with highly enhanced catalytic performance for soot combustion

Catalysis Science & Technology ◽

10.1039/c5cy00761e ◽

2015 ◽

Vol 5 (9) ◽

pp. 4594-4601 ◽

Cited By ~ 39

Author(s):

Jinguo Wang ◽

Gaoyang Yang ◽

Li Cheng ◽

Eun Woo Shin ◽

Yong Men

Keyword(s):

Catalytic Activity ◽

Three Dimensional ◽

Catalytic Performance ◽

Soot Combustion ◽

Spinel Type ◽

Ordered Macroporous

MCr2O4 catalysts with three-dimensional ordered macroporous structures displayed superior catalytic activity for soot combustion to their bulk counterparts.

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