A pyrolytic, carbon-stabilized, nanoporous pd film for wide-range H 2 sensing

Dongyan Ding, Zhi Chen

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

A nanoporous Pd film sensor fabricated on a carbon-coated AAA template has been found to have a unique H2 sensing performance compared to traditional dense Pd film sensors. Nanostructured Pd materials have been developed to improve H2-sensing performance, and they have demonstrated a much quicker response to hydrogen gas. There is always a slight drift in the film resistance for nanoporous Pd film sensors in balancing atmosphere of nitrogen. The pyrolytic, carbon-supported, nanoporous Pd film sensor is effective in detecting both dilute and high concentration of H 2 gas because of its nanoporous, structure-enhanced, H 2-sensing ability. Various nanoporous H2-sensitive materials such as Pd, Pt, Ni, and their alloys are expected to work based on the nanoporous-structure enhanced H2-sensing mechanism.

Original languageEnglish
Pages (from-to)1996-1999
Number of pages4
JournalAdvanced Materials
Volume19
Issue number15
DOIs
StatePublished - Aug 3 2007

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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