Passive Metal Hydride Module Concept for Enhanced Low-Temperature Catalyst Performance

A technology concept applicable to stoichiometric and lean burn engine operation-a metal hydride (MHx) module for the generation of H₂ via reaction with gaseous H₂O-was evaluated for the introduction of low levels of H₂ (ca. 500 ppmv) into internal combustion engine exhaust for the enhancement of catalyst performance at low temperatures, such as during cold-start. Projected MHx module packaging volume, replacement frequency, and costs over the lifetime of a light duty vehicle are excessive, and considered prohibitive to technology viability.

  • Record URL:
  • Supplemental Notes:
    • Abstract reprinted with permission of SAE International.
  • Authors:
    • Bradford, Michael C
  • Publication Date: 2017-12-6


  • English

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Filing Info

  • Accession Number: 01685729
  • Record Type: Publication
  • Source Agency: SAE International
  • Report/Paper Numbers: 2018-01-5001
  • Files: TRIS, SAE
  • Created Date: Oct 8 2018 1:11PM