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Permeation of hydrogen through steel by electrochemical transfer—I. Influence of catalytic poisons

✍ Scribed by T.P. Radhakrishnan; L.L. Shreir


Publisher
Elsevier Science
Year
1966
Tongue
English
Weight
857 KB
Volume
11
Category
Article
ISSN
0013-4686

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✦ Synopsis


The effect of poisons added to 0.1 N H&IO, on the permeation of hydrogen through a steel diaphragm has been studied by measuring the permeation current P. The effect of poisons in increasing P decmases in the discus3 uence As > Se > Te > S > Pb > Bi. The mechanism of poison action is reviewed and on the basis of hydrogen coverage and the kinetics of hydrogen evolution on iron in acid solutions. R&mm&Etude par mesure du courant P de perm6ation de l'effet des poisons sur la permeation de l'hydrogene a travers un diaphragme d'acier, dans une solution H$O,, 0,l N. A P croissant, cet e&t d6croIt selon As > Se > Te > S > Pb > Bi. Revue et discussion du m6canisme de l'emporsonnement sur lea bases du recouvrement par l'hydrogene et de la cinetique de l'6volution d'hydrogene sur le fer en solution acide. Zrmammenfaswmg-Man untersuchte den Effekt von Giften auf die Permeabilitat einer Stahhnembran gegentiber Wasserstoff in 0,l N H&30, durch Messung des Permeationstromes P. Der EinSuss der Gifte auf zunehmende Permeationsstrome verkleinert sich in der Reihenfolge As > Se > Te > S > Pb > Bi. Der Mechanismus der Giftwirkung wird auf der Grundlage der WasserstofTbedeckung und der Kinetik der Wasserstoffentwickhmg an Eisen in sauren Ldsungen zusammenfassend diskutiert.


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