FORMATION OF THE ACTIVE STATE OF THE PROMOTED IRON OX- IDE FOR CATALYTIC DEHYDROGENATION

2021 ◽  
Vol 2 (1) ◽  
pp. 144-156
Author(s):  
N. V. Dvoretskii ◽  
L. G. Anikanova ◽  
Z. G. Malysheva ◽  
T. N. Sudzilovskaya
Keyword(s):  
Active State ◽  
Catalytic Dehydrogenation

Binding of Thrombin to Fibrin

1979 ◽  
Author(s):  
L. Róka ◽  
F. G. Rademacher
Keyword(s):  
Antithrombin Iii ◽  
Monomer Concentration ◽  
Active State ◽  
Clot Formation ◽  
Constant Amount ◽  
Bovine Thrombin

After clot formation using bovine thrombin and bovine fibrinogen, one can detect no longer the total amount of thrombin. The amount missing in the supernatant is trapped in the clot and can be removed in active state after lysing the clot. The capacity for trapping thrombin by a constant amount of fibrin depends on the structure of the fibrinpolymer. This can be shown by producing different kinds of clots by variation of pH or monomer concentration during polymerisation or using Arvinmonomer insted of Thrombinmonomer. The trapped thrombin shows no clotting activity but some activity with chromogenic substrats remains. to neutralize trapped thrombin about 5 times more antithrombin III is necessary than for the same amount of free thrombin. The trapped thrombin diffuses out of the clot indicating the reversibility of the binding of thrombin to fribin.

Pt@Cu/C Core-Shell Catalysts for Hydrogen Production Through Catalytic Dehydrogenation of Decalin

2016 ◽  
Vol 26 (1) ◽  
pp. 17-21
Author(s):  
Ji Yeon Kang ◽  
Gihoon Lee ◽  
Yeojin Jeong ◽  
Hyon Bin Na ◽  
Ji Chul Jung
Keyword(s):  
Hydrogen Production ◽  
Core Shell ◽  
Catalytic Dehydrogenation

scholarly journals Thermodynamic and Kinetic Considerations Regarding the Prospects for a Dual-Purpose Hydrogen Extraction and Separation Membrane

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2136
Author(s):  
Karl Sohlberg
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Abstraction ◽  
Hydrogen Gas ◽  
Catalytic Dehydrogenation ◽  
Dual Purpose ◽  
Physical Separation ◽  
Extraction And Separation ◽  
Separation Membrane ◽  
Hydrocarbon Sources ◽  
Critical Materials

Extraction of hydrogen from hydrocarbons is a logical intermediate-term solution for the escalating worldwide demand for hydrogen. This work explores the possibility of using a single membrane to accomplish both the catalytic dehydrogenation and physical separation of hydrogen gas as a possible way to improve the efficiency of hydrogen production from hydrocarbon sources. The present analysis shows that regions of pressure/temperature space exist for which the overall process is thermodynamically spontaneous (ΔG < 0). Each step in the process is based on known physics. The rate of hydrogen production is likely to be controlled by the barrier to hydrogen abstraction, with the density of H-binding sites also playing a role. A critical materials issue will be the strength of the oxide/metal interface.

Catalytic dehydrogenation of amines to imines and the in-situ reduction of sulfoxides into sulfides

2021 ◽  
Author(s):  
Xixi Liu ◽  
Yanxin Wang ◽  
Bo Li ◽  
Bing Liu ◽  
Wei Wang ◽  
...  
Keyword(s):  
Catalytic Dehydrogenation ◽  
In Situ Reduction
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