<abstract xmlns="http://www.w3.org/1999/xhtml">The vast majority of experimental techniques used for the measurements of hydrogen permeability through metallic membranes whose one or both surfaces are covered with a thin Pd film is based on the assumption that a ratio of film-to-membrane thickness is small enough to cause hydrogen flow to be independent of the Pd film thickness. In an attempt to verify this assumption, we have measured the hydrogen flow through the Pd33Ni52Si15 amorphous membrane covered with Pd film of 10, 20, and 30 nm in thickness. Contrary to our expectations, we have found a dramatic decrease in hydrogen flow with the increase in Pd film thickness. Our findings are discussed in terms of potential barrier between the two different phases.</abstract>

The vast majority of experimental techniques used for the measurements of hydrogen permeability through metallic membranes whose one or both surfaces are covered with a thin Pd film is based on the assumption that a ratio of film-to-membrane thickness is small enough to cause hydrogen flow to be independent of the Pd film thickness. In an attempt to verify this assumption, we have measured the hydrogen flow through the Pd33Ni52Si15 amorphous membrane covered with Pd film of 10, 20, and 30 nm in thickness. Contrary to our expectations, we have found a dramatic decrease in hydrogen flow with the increase in Pd film thickness. Our findings are discussed in terms of potential barrier between the two different phases.

Hydrogen permeation properties of Pd-coated Pd33Ni52Si15 amorphous alloy membrane

Institute of Chemistry and Environmental Protection, Jan Długosz University of Częstochowa, Armii Krajowej 13/15, 42-200 Częstochowa, Poland

The Faculty of Microsystem Electronics and Photonics, Wrocław University of Technology, Janiszewskiego 11/17, 50-372 Wrocław, Poland

Institute of Physics, Jan Długosz University of Częstochowa, Armii Krajowej 13/15, 42-200 Częstochowa, Poland

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Hydrogen permeation properties of Pd-coated PdNiSi amorphous alloy membrane

The vast majority of experimental techniques used for the measurements of hydrogen permeability through metallic membranes whose one or both surfaces are...

Hydrogen permeation properties of Pd-coated Pd₃₃Ni₅₂Si₁₅ amorphous alloy membrane

Pubblicato online: 13 mar 2015

Pagine: 56 - 58

Ricevuto: 07 apr 2014

Accettato: 12 ott 2014

DOI: https://doi.org/10.1515/msp-2015-0009

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.