【摘要】 用共沉淀法合成不同x值的尖晶石型化合物NixAl1-xMn2O4(0≤x≤1)作为锌空电池氧还原电极催化剂,用红外光谱(IR)、X射线衍射(XRD)和扫描电镜(SEM)对催化剂进行了研究,发现其具有良好的尖晶石结构,粒径随x值增加而变化;电化学研究发现:当x≤0 35时,NixAl1-xMn2O4对氧还原电极具有较好催化活性,电极中催化剂最佳含量为15%。更多还原

【Abstract】 Spinel-type Ni_xAl_1-xMn₂O₄ （0≤x≤1） compounds as the positive catalysts for Zn-air battery were prepared by co-precipitation route. It was found by IR, XRD and SEM that the catalysts showed a good spinel structure, and the size of the particles changed with x values. The results of electrochemical measurement showed that the catalysts exhibited excellent electrocatalytic properties for the oxygen reduction reaction when the x≤0.35. Besides, the positive electrode which was composed of 15% the catalyst based on the total quality of the positive materials, exhibited preferable electrocatalytic properties.更多还原