Hydrogen-atom direct-entry mechanism into metal membranes

Journal Article · Sat Dec 31 23:00:00 EST 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2043855· OSTI ID:6799681

Zheng, G; Popov, B N; White, R E ^[1]

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1. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering

The hydrogen-atom direct-entry mechanism is used to explain why the steady-state hydrogen permeation current density through a metal membrane is directly proportional to the cathodic current density, i[sub c], and is independent of the membrane thickness when i[sub c] is small. The Devanathan-Stachurski permeation technique was used to investigate the rate of hydrogen permeation through a HY-130 steel and through palladium membranes with an area of approximately 4 cm[sup 2] with thicknesses of 0.15 and 0.025 mm, respectively.

• OSTI ID: 6799681
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 142:1; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ALLOYS
CHEMICAL REACTIONS
ELECTROLYTES
ELEMENTS
EMBRITTLEMENT
HYDRIDATION
HYDROGEN
HYDROGEN EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
MARTENSITIC STEELS
MEMBRANE TRANSPORT
METALS
NONMETALS
PALLADIUM
PERMEABILITY
PLATINUM METALS
STEELS
TRANSITION ELEMENTS