Hot electron-induced electrogenerated chemiluminescence of Ru(bpy)(3)(2+) chelate at a pointed active metal cathode in fully aqueous solutions



: Kuosmanen P, Salminen K, Pusa M, Ala-Kleme T, Kulmala S

Publisher: ELSEVIER SCIENCE SA

: 2016

: Journal of Electroanalytical Chemistry

: JOURNAL OF ELECTROANALYTICAL CHEMISTRY

: J ELECTROANAL CHEM

: 783

: 63

: 67

: 5

: 1572-6657

: 1873-2569

DOI: https://doi.org/10.1016/j.jelechem.2016.10.057


Tris(2,2'-bipyricline)ruthenium(II) chelate exhibits strong electrogenerated chemiluminescence during cathodic high-voltage pulse-polarization of pointed Pt electrode in aqueous solutions. The present method is based on a field emission or other type of tunnel emission of hot electrons into an aqueous electrolyte solution. The method allows the detection of tris(2,2'-bipyridine)ruthenium(II) and its derivatives below nanomolar concentration levels and yields linear log-log calibration plots spanning several orders of magnitude of concentration. (C) 2016 Elsevier B.V. All rights reserved.

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