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Title: The effect of electrode material on the electrogenerated chemiluminescence of luminol

Abstract

This paper reports on the oxidation of luminol and its concomitant electrogenerated chemiluminescence (ECL) which were studied at several electrode materials by voltammetry and chronoamperometry. The ECL intensity (I{sub ECL}) was inversely related to the activity of the electrodes. The lowest I{sub ECL}) was measured when luminol was oxidized to 3-aminophthalate (n {approx equal}4 eq mol{sup {minus}1}) at a nearly mass-transport limited rate at glassy carbon. The ECL kinetics were studied and the order of the reaction with respect to luminol was 3/2 at concentrations to ca. 1 mM when O{sub 2} was the coreactant. In the presence of H{sub 2}O{sub 2}, the ECL reaction was first order with respect to luminol. A reaction mechanism is proposed that is consistent with the inetic data and the inverse relationship between electrode activity and I{sub ECL}. The implications of these results are discussed with respect to imaging the spatial distribution of current density at electrode surfaces, including that of PbO{sub 2} films activated by adsorbed Bi(V). A value of 6.6 {times} 10{sup {minus}6} cm{sup 2} s{sup {minus}1} was determined for the diffusion coefficient of luminol in 0.1M NaOH.

Authors:
;  [1];  [2]
  1. Ames Lab., IA (United States)
  2. Dept. of Chemistry, Univ. of South Dakota, Vermillion, SD (US)
Publication Date:
Sponsoring Org.:
National Science Foundation (NSF); National Science Foundation, Washington, DC (United States)
OSTI Identifier:
5273006
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society; (United States)
Additional Journal Information:
Journal Volume: 138:6; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 30 DIRECT ENERGY CONVERSION; ELECTRODES; MATERIALS TESTING; LEAD OXIDES; THIN FILMS; LUMINOL; CHEMILUMINESCENCE; ACTIVATION ENERGY; ADSORPTION; AMPEROMETRY; BISMUTH; CHEMICAL REACTION KINETICS; CURRENT DENSITY; DIFFUSION; MASS TRANSFER; OXIDATION; SODIUM HYDROXIDES; SPATIAL DISTRIBUTION; VOLTAMETRY; ALKALI METAL COMPOUNDS; AMINES; AZINES; CHALCOGENIDES; CHEMICAL REACTIONS; DISTRIBUTION; ELEMENTS; ENERGY; FILMS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXIDES; KINETICS; LEAD COMPOUNDS; LUMINESCENCE; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHTHALAZINES; PYRIDAZINES; REACTION KINETICS; SODIUM COMPOUNDS; SORPTION; TESTING; TITRATION; 400500* - Photochemistry; 400400 - Electrochemistry; 300503 - Fuel Cells- Materials, Components, & Auxiliaries; 300505 - Fuel Cells- Electrochemistry, Mass Transfer & Thermodynamics

Citation Formats

Vitt, J E, Johnson, D C, and Engstrom, R C. The effect of electrode material on the electrogenerated chemiluminescence of luminol. United States: N. p., 1991. Web. doi:10.1149/1.2085846.
Vitt, J E, Johnson, D C, & Engstrom, R C. The effect of electrode material on the electrogenerated chemiluminescence of luminol. United States. https://doi.org/10.1149/1.2085846
Vitt, J E, Johnson, D C, and Engstrom, R C. 1991. "The effect of electrode material on the electrogenerated chemiluminescence of luminol". United States. https://doi.org/10.1149/1.2085846.
@article{osti_5273006,
title = {The effect of electrode material on the electrogenerated chemiluminescence of luminol},
author = {Vitt, J E and Johnson, D C and Engstrom, R C},
abstractNote = {This paper reports on the oxidation of luminol and its concomitant electrogenerated chemiluminescence (ECL) which were studied at several electrode materials by voltammetry and chronoamperometry. The ECL intensity (I{sub ECL}) was inversely related to the activity of the electrodes. The lowest I{sub ECL}) was measured when luminol was oxidized to 3-aminophthalate (n {approx equal}4 eq mol{sup {minus}1}) at a nearly mass-transport limited rate at glassy carbon. The ECL kinetics were studied and the order of the reaction with respect to luminol was 3/2 at concentrations to ca. 1 mM when O{sub 2} was the coreactant. In the presence of H{sub 2}O{sub 2}, the ECL reaction was first order with respect to luminol. A reaction mechanism is proposed that is consistent with the inetic data and the inverse relationship between electrode activity and I{sub ECL}. The implications of these results are discussed with respect to imaging the spatial distribution of current density at electrode surfaces, including that of PbO{sub 2} films activated by adsorbed Bi(V). A value of 6.6 {times} 10{sup {minus}6} cm{sup 2} s{sup {minus}1} was determined for the diffusion coefficient of luminol in 0.1M NaOH.},
doi = {10.1149/1.2085846},
url = {https://www.osti.gov/biblio/5273006}, journal = {Journal of the Electrochemical Society; (United States)},
issn = {0013-4651},
number = ,
volume = 138:6,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 1991},
month = {Sat Jun 01 00:00:00 EDT 1991}
}