High-performance boron-doped vanadium-aluminum alloy membranes for hydrogen separation

Edoardo Magnone, Sung Il Jeon, Jung Hoon Park, Yong Taek Lee

Research output: Contribution to journalArticlepeer-review

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Abstract

In this letter, our aim is to explore the properties of a new class of high-performance membranes for hydrogen separation applications prepared from boron-doped vanadium-aluminum alloys. In particular, we present the first hydrogen permeation characteristics of Pd-coated V 99.8 - xAl xB 0.2 (x = 0, 10) alloy membranes. Membranes have been investigated in the pressure range 1.5-3.0 bar under pure hydrogen and hydrogen-carbon dioxide gas mixture at 400°C. Hydrogen flux is found on the order of 48 mL/min/cm 2 for a Pd-coated V 99.8B 0.2 alloy membrane (thickness: 0.5 mm) using pure hydrogen as the feed gas.

Original languageEnglish
Pages (from-to)47-49
Number of pages3
JournalMaterials Letters
Volume73
DOIs
StatePublished - 15 Apr 2012

Keywords

  • Boron-doping
  • Hydrogen separation
  • Vanadium
  • Vanadium alloy

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