Electrogenerated chemiluminescence at boron-doped diamond electrodes

Abstract

Electrogenerated chemiluminescence is a light emission from molecular species which is triggered by an electrochemical reaction. Therefore, as most electrochemical systems, the electrode material takes on a pivotal role which...

Electrochemiluminescence Systems for Metal‐Ion Detection: A Systematic Review

“…BDD electrode is p-type semiconductor materials with many advantages compared to other electrodes, including wide potential windows, low capacitive currents, high chemical and physical stability, the ability to withstand high potentials, and better fouling resistance than conventional electrodes. [131] Accordingly, BDD electrode have been employed in a wide range electrochemical system, mostly for sensors and biosensors [144][145][146][147][148] and electrocatalysts [149][150][151] . The use of BDD electrodes in ECL systems have been studied for various coreactant compounds, such as in the Ru(bpy) 3 2 + /TPrA system; [152][153][154] Ru(bpy) 3 2 + /Ascorbic Acid, [155] Ru(bpy) 3 2 + / S 2 O 8 2À , [156] Ru(bpy) 3 2 + /SO 4 2À , [157] luminol/CO 3 2À [158] and luminol/ H 2 O 2 .…”

“…Another carbon‐based electrode that has been developed for ECL systems is the boron‐doped diamond (BDD) electrode. BDD electrode is p‐type semiconductor materials with many advantages compared to other electrodes, including wide potential windows, low capacitive currents, high chemical and physical stability, the ability to withstand high potentials, and better fouling resistance than conventional electrodes [131] . Accordingly, BDD electrode have been employed in a wide range electrochemical system, mostly for sensors and biosensors [144–148] and electrocatalysts [149–151] .…”

From theory to practice: understanding the challenges in the implementation of electrogenerated chemiluminescence for analytical applications

“…5 Normalized ECL as a function of pH: Ru(bpy) 3 2+ free diffusing in solution (black), and Ru(bpy) 3 2+ labeled on 2.8-µm beads deposited on the electrode (red). Adapted with permission from [ 51 ], Copyright (2023) Royal Society of Chemistry …”

“…To acquire the metallic conductivity necessary for electrochemistry, it is generally doped with boron at concentration around or higher than 10 20 [B] cm −3 [ 85 ]. The electrochemistry of boron-doped diamond (BDD) has been established with application in chemical and biochemical sensing, environmental remediation, electrosynthesis, electrocatalysis, and energy storage and conversion [ 86 ], and recently, BDD has also been applied successfully to ECL [ 51 ]. Well-known characteristics include wide potential window in aqueous electrolyte (low catalytic activity for oxygen and hydrogen evolution reaction), low capacitive current, and physical and chemical stability.…”

AC-Bipolar Electrosynthesis and Luminol Electrochemiluminescence Imaging of Poly(3,4-ethylenedioxythiophene) and Its Composite Films

“…Successively, all three polymer films, that is, PEDOT, PEDOT-Cu, and PEDOT-PT, were further employed as BPEs to trigger the ECL reaction from the luminol and hydrogen peroxide (H 2 O 2 ) system. ECL, namely, the light emission triggered electrochemically, − is not only a sensitive electroanalytical technique − but has also recently emerged as a powerful microscopy technique. , In this regard, the use of luminol as a luminophore for ECL generation represents the ideal approach for imaging applications thanks to its intense light emission, , low oxidation potential, , and light dependence on the electrode material . Indeed, by mapping the light distribution and intensity generated on the three different polymer films, we could evaluate their ECL behavior as a function of the total applied voltage ( E tot ) by means of imaging analysis.…”