Volume-expansion-enhanced pinning of nanoporous Pd films for detection of high-concentration hydrogen

Dongyan Ding, Zhi Chen

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


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 languageEnglish
Pages (from-to)331-333
Number of pages3
JournalSensor Letters
Issue number3
StatePublished - Sep 2006


  • Anodic aluminum oxide
  • Hydrogen sensor
  • Nanoporous palladium
  • Resistance
  • Stability

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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