化学复合镀制备高活性节能NiCo2O4电极|陈建军,杨建红,刘业翔,李庆余,危爱芳-《中国有色金属学报》官方网站|全网首发|论文开放获取

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第10卷第4期总第37期 2000年8月

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文章编号：1004-0609(2000)04-0564-05

化学复合镀制备高活性节能NiCo₂O₄电极

陈建军^１，杨建红^１，刘业翔^１, 李庆余^１，危爱芳^２

(1. 中南工业大学冶金科学与工程系，长沙 410083; 2. 湖南铁合金厂，湘乡)

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。

关键字: 化学复合镀；碱性水电解；节能

Preparation of NiCo₂O₄ electrode by composite electroless

CHEN Jianjun^１, YANG Jianhong^１, LIU Yexiang^１, LI Qingyu^１, WEI Aifang^２

（1. Department of Metallurgical Science and Engineering， Central South University of Technology，Changsha 410083， P.R.China;
2. Hunan Ferroalloy Factory， Xiangxiang 411400， P.R.China）

Abstract:Electroless plating NiCoP and composite electroless plating NiCoPAl₂O₃ subsequently on Fe substrate were presented.After NiCoPAl₂O₃ 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)₂CO(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.

Key words: composite electroless plating; alkaline water electrolysis; savingenergy

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW