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The effect of microstructural characteristics on the hydrogen permeation transient in quenched and tempered martensitic alloys Ghent University
The effect of a constant tensile load on the hydrogen diffusivity in dual phase steel by electrochemical permeation experiments Ghent University
This work considers the effect of a constant load on the hydrogen diffusion characteristics studied by electrochemical permeation experiments. Dual phase steel and Armco iron are used for this purpose. Different degrees of load, both in the elastic and plastic regime, are applied on the sample during the permeation experiment when hydrogen is migrating through the material. The resulting transients show that applied elastic tensile stresses ...
A modelling approach on the impact of an oxide layer on the hydrogen permeation through iron membranes in the Devanathan-Stachurski cell Vrije Universiteit Brussel
The diffusion and trapping of hydrogen in iron alloys is commonly studied using the Devanathan-Stachurski cell. In this cell, the hydrogen flux through a metal membrane is studied. At the exit side of the membrane, an oxide layer is commonly developed and stabilized as a consequence of the anodic polarization imposed. The process of hydrogen diffusion through the oxide layer and its consecutive oxidation is not fully understood yet. In this ...
Methodology of the electrochemical hydrogen permeation test : a parametric evaluation Ghent University
The effect of calcareous deposits on the hydrogen diffusion and uptake of carbon steel evaluated by permeation experiments Ghent University
In this research, the effect of calcareous deposits on the hydrogen evolution reaction and hydrogen absorption has been investigated. Therefore, the Devanathan-Stachurski cell has been used to evaluate the hydrogen uptake of a construction steel (S235) which is charged in a NaCl solution containing Ca2+ and Mg2+ under CP (Cathodic Protection) condition of -1000 mV (Ag/AgCl). On the charging side, calcareous deposits are formed on the steel ...
Deciphering the potential involvement of PXMP2 and PEX11B in hydrogen peroxide permeation across the peroxisomal membrane reveals a role for PEX11B in protein sorting KU Leuven
Peroxisomes have the intrinsic ability to produce and scavenge hydrogen peroxide (H2O2), a diffusible second messenger that controls diverse cellular processes by modulating protein activity through cysteine oxidation. Current evidence indicates that H2O2, a molecule whose physicochemical properties are similar to those of water, traverses cellular membranes through specific aquaporin channels, called peroxiporins. Until now, no peroxiporin-like ...
The Mystery behind Hydrogen Peroxide Permeation across the Peroxisomal Membrane KU Leuven
As befits their name, peroxisomes play a central role in cellular hydrogen peroxide (H₂O₂) metabolism. In addition, it is increasingly appreciated that changes in peroxisomal H₂O₂ metabolism can actively contribute to the initiation and progression of redox stress-related human pathologies such as cancer, diabetes, and neurodegeneration. However, to function as a subcellular hub for H₂O₂ metabolism and signaling, peroxisomes must exchange this ...