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Light emission at electrodes: An electrochemiluminescence demonstration
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Abstract
Electrochemiluminescence involves the production of light near an electrode surface by the generation of species that can undergo highly energetic electron transfer reactions. A demonstration is presented that uses Ru(bpy)32+ (bpy = 2,2'-bipyridine) as the light-emitting molecule and tri-n-propylamine (C9H21N) as a coreactant (i.e., a species capable of generating a strong reductant upon oxidation). Upon application of a 3-volt potential to a platinum electrode immersed in a Ru(bpy)32+-C9H21N solution, an orange glow, readily visible in a semidarkened room, is produced at the electrode.
Keywords (Audience):
Second-Year UndergraduateKeywords (Domain):
DemonstrationsKeywords (Feature):
Tested DemonstrationsKeywords (Subject):
ElectrochemistryCiting Articles
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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Customized Laboratory Experience in Physical Chemistry
Karen J. Castle and Stephanie M. RinkJournal of Chemical Education2010 87 (12), 1360-1363Customized Laboratory Experience in Physical Chemistry
Karen J. Castle and Stephanie M. RinkJournal of Chemical Education2010 87 (12), 1360-1363A new physical chemistry laboratory experience has been designed for upper-level undergraduate chemistry majors. Students customize the first 10 weeks of their laboratory experience by choosing their own set of experiments (from a manual of choices) and ...
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History
- Received: August 03, 2009
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