Abstract
Blistering of dense Pd films upon absorption of high-concentration hydrogen is one of the serious issues for hindering wide applications of Pd-film hydrogen sensors fabricated on traditional substrates. With anodic aluminum oxide (AAO) template as a robust substrate and Ni as a transition layer, we fabricated nanoporous Pd film sensors with quick and reversible response to hydrogen gas at room temperature. A volume-expansion-enhanced pinning of the nanoporous Pd films around nanoholes of the AAO templates makes it possible to detect high-concentration hydrogen (up to 10% H2) without blistering.
| Original language | English |
|---|---|
| Pages (from-to) | 331-333 |
| Number of pages | 3 |
| Journal | Sensor Letters |
| Volume | 4 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 2006 |
Keywords
- Anodic aluminum oxide
- Hydrogen sensor
- Nanoporous palladium
- Resistance
- Stability
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering