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中國有色金屬學(xué)報

ZHONGGUO YOUSEJINSHU XUEBAO

第10卷第4期總第37期 2000年8月

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文章編號：1004-0609(2000)04-0564-05

化學(xué)復(fù)合鍍制備高活性節(jié)能NiCo₂O₄電極

陳建軍^１，楊建紅^１，劉業(yè)翔^１, 李慶余^１，危愛芳^２

(1. 中南工業(yè)大學(xué) 冶金科學(xué)與工程系，長沙 410083; 2. 湖南鐵合金廠，湘鄉(xiāng))

摘要: 在賤金屬鐵基表面化學(xué)鍍NiCoP，然后通過化學(xué)復(fù)合鍍制得NiCoPAl₂O₃底層，復(fù)合鍍層用NaOH溶液浸出，可制得新型NiCoP微孔活性中間層。在中間層上再涂覆匹配性較好的NiCo₂O₄表面活性層，該表面活性層由一定濃度配比的Ni(NO₃)₂和Co(NO₃)₂通過高溫?zé)峤舛伞?X射線衍射結(jié)果表明表面活性層是由NiCo₂O₄組成，不存在NiO和Co₃O₄的獨(dú)立相。這種新型表面活性層用于堿性水電解時具有析氧催化活性高，穩(wěn)定性好等特點。

關(guān)鍵字: 化學(xué)復(fù)合鍍；堿性水電解；節(jié)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