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 language | English |
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Pages (from-to) | 1996-1999 |
Number of pages | 4 |
Journal | Advanced Materials |
Volume | 19 |
Issue number | 15 |
DOIs | |
State | Published - Aug 3 2007 |
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering