Electrochemically Catalytic Activity of Boron-doped Diamond for I⁻/I⁰ Redox Couple

抄録

Boron-doped diamond (BDD) is promising as electrocatalyst for alternative material to platinum (Pt) because of its superior chemical stability. Electrochemically catalytic activity of BDD on the redox couple of I⁻/I⁰ was studied by using the electrochemical method. It showed the parabolic dependence on the doping level of boron in diamond and the maximum value was 0.94 µA/cm² in terms of the exchanging current density. This value is slightly higher than graphite and smaller than Pt. Additional surface modification of BDD could improve the catalytic activity.