化学复合镀制备高活性节能NiCo2O4电极
来源期刊：中国有色金属学报2000年第4期
论文作者：陈建军 杨建红 刘业翔 李庆余 危爱芳
文章页码：564 - 568
关键词：化学复合镀； 碱性水电解； 节能
Key words：composite electroless plating; alkaline water electrolysis; saving-energy
摘 要：在贱金属铁基表面化学镀Ni-Co-P， 然后通过化学复合镀制得Ni-Co-P-Al2O3底层， 复合镀层用NaOH溶液浸出，可制得新型Ni-Co-P微孔活性中间层。在中间层上再涂覆匹配性较好的NiCo2O4表面活性层， 该表面活性层由一定浓度配比的Ni(NO3)2和Co(NO3)2通过高温热解而成。 X射线衍射结果表明表面活性层是由NiCo2O4组成，不存在NiO和Co3O4的独立相。这种新型表面活性层用于碱性水电解时具有析氧催化活性高， 稳定性好等特点。
Abstract: Electroless plating Ni-Co-P and composite electroless plating Ni-Co-P-Al2O3 subsequently on Fe substrate were presented.After Ni-Co-P-Al2O3 coatings immersed in 5 mol/L NaOH solution， a new micro-hole and active coating was formed. Deposition of the active NiCo2O4 coating on surface of Ni-Co-P coating was formed after heat treatment in 2.0 mol/L Ni(NO3)2CO(NO3)2 mixing solutions at high temperature. Composition of the surface coating (NiCo2O4) was verified by X-ray diffraction analysis， which showed that no NiO and Co3O4 existed. The new DSA for alkaline water electrolysis has higher catalytic activity and longer life-time.
