Cobalt was deposited on spherical nickel hydroxide by electroless plating, using hydrazine or sodium hypophosphite as reductive agent and ammonia or potassium sodium tartrate as complexing agent, respectively. 采用水合联氨或次亚磷酸氢钠作还原剂,分别在酒石酸钾钠和氨的配合体系中镀覆球形氢氧化镍,对一定金属钴镀覆量下的产物进行了XRD和SEM分析与观测。