Solid-State Electrochemical Method for Determining Core and Shell Size in Pd@PdO Nanoparticles
✍ Scribed by Antonio Doménech-Carbó; Eugenio Coronado; Pilar Díaz; Antonio Ribera
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 612 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1040-0397
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✦ Synopsis
Abstract
Electrochemical characterization of palladium nanoparticles surrounded by a palladium oxide shell (Pd@PdO) is described from a combination of voltammetry plus electrochemical quartz crystal microbalance experiments at nanoparticle deposits on graphite electrodes in contact with aqueous H~2~SO~4~ and NaOH solutions. A method for determining the metal core size and oxide shell thickness of the Pd@PdO nanoparticles, based on a combination of conventional voltammetry of nanoparticles in DMSO solution and voltammetry of nanoparticle deposits in contact with 0.10 M aqueous NaOH solution, is described.