Electrodes (working) – M-BDD-3

The BioLogic M-BDD-3 is a boron-doped diamond (BDD) disk working electrode designed for electrochemical measurements that require either an exceptionally wide potential window, very low background current, or high stability in chemically aggressive environments that would damage conventional carbon or metal electrodes. BDD is a synthetic diamond material doped with boron during chemical vapor deposition (CVD) growth, which makes it electrically conductive while retaining the extreme chemical inertness and hardness of diamond.

The primary advantage of BDD electrodes over conventional glassy carbon (GC) electrodes is the dramatically wider electrochemical potential window in aqueous solutions — typically -1.35 V to +2.3 V vs. Ag/AgCl in 0.1 M H2SO4, compared to approximately -0.9 V to +1.5 V for GC. This extended window opens access to electrochemical reactions that are not observable at conventional electrodes due to background current from water electrolysis. The very low background current on BDD also improves detection limits for trace electroanalysis and makes EIS measurements on low-capacitance surfaces more accurate.

BDD electrodes are chemically stable in strongly acidic solutions (including hot H2SO4 and HClO4), strongly alkaline solutions, and organic solvents that would corrode or dissolve glassy carbon or metal electrodes. This makes BDD the material of choice for electrochemical measurements in extreme or unusual electrolyte environments. Common applications include detection and quantification of organic pollutants (phenols, pesticides, pharmaceutical compounds) by anodic oxidation, heavy metal trace analysis by stripping voltammetry, ozone and fluorine generation, and fundamental electrochemical studies at wide potentials. NewRoad provides the BioLogic M-BDD-3 BDD working electrode in Israel.