Abstract
Nanoporous palladium nickel (np-PdNi) was produced by dealloying PdNi alloy thin films. The pore and ligament dimensions were reduced by 50% when surfactants were added to the sulfuric acid etching solution. Changes in film composition and biaxial film stress were used to track the dealloying evolution in the surfactant-modified etching solution. Ultrasonic agitation was also used to enhance dealloying and shortened the required time from 5 h to 1 h, while retaining a pore/ligament size of ∼5 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 167-169 |
| Number of pages | 3 |
| Journal | Scripta Materialia |
| Volume | 62 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 2010 |
Bibliographical note
Funding Information:This material is based upon work supported by the National Science Foundation under Grant No. DMR-0847693 . Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund (Grant No. 43324-G10 ), for support of this research.
Keywords
- Dealloying
- Nanoporous
- Palladium
- Surfactant
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys