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- Title
Nano-Roughening a Pt Disk Microelectrode via Electrochemical Alloying-Dealloying in Ionic Liquid Electrolyte.
- Authors
Jiang, Junhua; Wang, Xinying; Zhang, Lei
- Abstract
A green chemistry method to nano-roughen a Pt disk microelectrode has been successfully developed via electrochemical alloying-dealloying in an ionic liquid bath comprising of ZnCl2 and 1-ethyl-3-methylimidazolium chloride. The nano-roughened Pt layer possesses bark-like nanoporous structures characteristic of nano-sized aggregates separated by nano-cracks whose width ranging from around 50 to 200 nm. The nano-roughened microelectrode possesses high surface area and diffusional properties typical of a microelectrode. Electrochemical oxidation and reduction of nitrite have been studied as an example for demonstrating that the nano-roughened microelectrode is a promising technique for electroanalysis and electrocatalysis applications.
- Subjects
NANOPOROUS materials; ELECTROCHEMICAL analysis; IONIC liquids; NANOSTRUCTURED materials; MICROELECTRODES
- Publication
Electroanalysis, 2013, Vol 25, Issue 8, p2015
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.201300177