Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 138, Issue 2, Pages 397-401Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.02.004
Keywords
Fullerene C-60; Aqueous voltammetry; Reduction mechanism; Film-modified electrode; Epoxide; XPS; UV-vis
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In this letter, we present experimental data which challenges the model proposed since the mid-1990s that the reduction of C-60 films in aqueous electrolytes involves the formation of [Mn+C60n-] where M-center dot represents a metal cation or proton. Instead we provide voltammetric, XPS and UV-vis evidence that the reduction of C-60 films in aqueous media is instead the reduction of adventitious poly-epoxidated C60On With subsequent chemically irreversible loss of O-2 as water, and that C-60 is not reduced within tire potential windows of aqueous electrolytes. (C) 2009 Elsevier B.V. All rights reserved.
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