Preparation and Electrochemical Performance of MnOx-M/AC(M =La,Ce,Co,Ni) Composites as Oxygen Reduction Catalyst Used in Zinc-air Battery
Oxygen reduction catalyst of MnOx/AC doped with La, Ce, Co, Ni were prepared with thermal decomposition method, and their characteristic and electrochemical performance were investigated by XRD and linear polarization method. Results show that MnOx/ AC doped with appropriate amount of La, Ce, Co and Ni, respectively, could improve catalytic activity towards oxygen reduction, and those doped with La and Co are slightly more active than the others. The discharge voltages of the simulative zinc-air batteries fabricated with MnOx-M/AC (M = La, Co) are 1.1236V and 1.1246V respectively under the discharge current of 50 mA/cm2.
Keywords oxygen reduction catalyst MnOx/AC composite cathodic linear polarization method
PAN Lin-mao NAN Jun-min SHU Dong SONG Yan
School of Chemistry and Environment, South China Normal University,Guangzhou 510006, China
国际会议
北京
英文
177-178
2006-08-03(万方平台首次上网日期,不代表论文的发表时间)