Nano letters, 2010-01, Vol.10 (1), p.187-194
2010
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Details
- Autor(en) / Beteiligte
- Titel
- Nanoporous Au−Pt Alloys As Large Strain Electrochemical Actuators
- Ist Teil von
- Nano letters, 2010-01, Vol.10 (1), p.187-194
- Ort / Verlag
- Washington, DC: American Chemical Society
- Erscheinungsjahr
- 2010
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- Nanoporous Au−Pt alloys with pore- and ligament size down to few nanometers were fabricated by dealloying Ag−Au−Pt. Owing to the small structure size and large specific surface area, the surface stress and its variation give rise to significant stress and strain in the bulk of these materials. In fact, dilatometry experiments find electrochemical actuation with large reversible strain amplitude. The linear strain reaches ∼1.3% and strain energy density is up to 6.0 MJ/m3. The associated stresses may approach the elastic limit of the alloy.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1530-6984eISSN: 1530-6992DOI: 10.1021/nl903262bTitel-ID: cdi_proquest_miscellaneous_733611147
- Format
- –
- Schlagworte
- Alloys - chemistry, Condensed matter: structure, mechanical and thermal properties, Elasticity, Electrochemistry - methods, Exact sciences and technology, Gold - chemistry, Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties, Materials Testing, Mechanical and acoustical properties of condensed matter, Mechanical properties of nanoscale materials, Metal Nanoparticles - chemistry, Nanotechnology - methods, Physics, Platinum - chemistry, Surface Properties, Surfaces and interfaces, thin films and whiskers (structure and nonelectronic properties), Tensile Strength