The performances of the electrogeneration of ClO- on the different electrode materials, such as boron-doped diamond (BDD), Pt/BDD and Pt, were investigated at constant voltages of 10, 20 and 30 V as well as constant currents of 25, 50 and 75 mA. The BDD and Pt/BDD electrodes showed superior to platinum electrode for the ClO- generation at both constant voltage and constant current conditions under respective room temperature (RT) and low temperature (LT) (2-5 degrees C). Both BDD and Pt/BDD electrodes exhibited high stability used under high voltage and current conditions. (C) 2005 Elsevier Ltd. All rights reserved.