Amperometric detection of ultra trace amounts of Hg(I) at the surface boron doped diamond electrode modified with iridium oxide

Anodic electrodeposition of iridium oxide particles on glassy carbon surfaces and their electrochemical/SEM/XPS characterization

“…Thus, electrocatalytic sensors based on iridium oxide species were studied and successful developed for analytical purpose [25][26][27][28]. Moreover, electrocatalysts containing iridium species and platinum-, palladium-or ruthenium-iridium alloys have shown very encouraging level of catalytic activity for reduction processes [29,30] or excellent CO-tolerant performance for proton-exchange membrane fuel cells [31].…”

Microparticle-based iridium oxide ultramicroelectrodes for pH sensing and imaging

“…sputtering from a metallic iridium target in an oxygen plasma [17,[32][33][34], pulsed-laser ablation of iridium oxide targets [35], electrophoretic deposition [36], anodic or cathodic electrodeposition [19,24,37], induction heating [38], sol-gel processes [39], and electrochemical oxidation of iridium wires [9,16] or films [40].…”

Diamond Electrodes for High Sensitivity Mercury Detection in the Aquatic Environment: Influence of Surface Preparation and Gold Nanoparticle Activity

“…Alternative routes to improving the sensitivity of mercury detection include modification of the BDD surface with pH sensitive iridium oxide, which enables measurements to be made over a wide, 2–6 pH range. Current reports show that this technique has lower sensitivity than GCE electrodes modified with AuNPs . The co‐deposition of gold, which prevents calomel formation, and the co‐deposition of copper, which removes the need for a preconcentration step, have resulted in greater sensitivity for mercury detection than bare BDD electrodes.…”