Studies on Co-based catalysts supported on modified

Electrochemical characterizations were performed in a single-compartment,three-electrode cell.Arotating ring disk electrode from PINE Instruments with a glassy carbon disk (5mm o.d.)and Pt ring (5.52mm i.d. and 7.16 o.d.)was used as the working electrode. 旋转圆盘圆环电极（E7R9 RRDE 318m)/旋转环盘电极