Long-term hydrogen permeation tests of Pd-Cu-Ni/PNS with temperature cycles from room temperature to 773 K

Shin Kun Ryi, Jong Soo Park, Sung Hyun Kim, Dong Won Kim, Jin Wook Moon

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Pd-Cu-Ni ternary alloy membranes were fabricated on a porous nickel support by sputtering followed by the Cu-reflow method. The weight composition of Pd:Cu:Ni was 88.9:7.4:3.7 and the thickness was 12 μm. α-β phase transition tests were carried out using hydrogen gas in the temperature range from 373 to 623 K using feed side pressures of 0.052 and 0.138 MPa. There were neither peaks nor shoulders in the hydrogen flux across the entire temperature range, meaning that the α-β phase transition did not occur below the critical points of the Pd-H system, i.e. 565 K, 1.97 MPa. The durability of the membranes was demonstrated by performing temperature cycles from room temperature to 773 K at a feed side pressure of 0.138 MPa and this was attributed to the phase stability of the α-phase even at room temperature.

Original languageEnglish
Pages (from-to)261-266
Number of pages6
JournalJournal of Membrane Science
Volume306
Issue number1-2
DOIs
Publication statusPublished - 2007 Dec 1

Keywords

  • Hydrogen membrane
  • Pd alloy
  • Phase transition
  • Porous nickel support

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Fingerprint Dive into the research topics of 'Long-term hydrogen permeation tests of Pd-Cu-Ni/PNS with temperature cycles from room temperature to 773 K'. Together they form a unique fingerprint.

  • Cite this