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Hydrogen permeation on Al 2 O 3 -based nickel/cobalt composite membranes

International Journal of Hydrogen Energy, ISSN: 0360-3199, Vol: 35, Issue: 23, Page: 12976-12980
2010
  • 29
    Citations
  • 0
    Usage
  • 22
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    29
    • Citation Indexes
      29
  • Captures
    22

Article Description

Al 2 O 3 was synthesized using the sol-gel process with aluminum isopropoxide as the precursor and primary distilled water as the solvent. Nickel and cobalt metal powders were used to increase the strength of the membranes. The Al 2 O 3 -based membranes were prepared using HPS following a mechanical alloying process. The phase transformation, thermal evolution, surface and cross-section morphology of Al 2 O 3 and Al 2 O 3 -based membranes were characterized by XRD, TG-DTA and FE-SEM. The hydrogen permeation of Al 2 O 3 -based membranes was examined at 300–473 K under increasing pressure. Hydrogen permeation flux through an Al 2 O 3 -20wt%Co membrane was obtained to 2.36 mol m −2 s −1. Reaction enthalpy was calculated to 4.5 kJ/mol using a Van’t Hoff’s plot.

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