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Improvement of stability of trivalent chromium electroplating of Ti based IrO_2+Ta_2O_5 coating anodes 被引量：3

Improvement of stability of trivalent chromium electroplating of Ti based IrO_2+Ta_2O_5 coating anodes
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摘要 The preparation process and properties of the thermally prepared Ti anodes coated with IrO2+Ta2O5 was studied. The structure and morphologies of the IrO2+Ta2O5 coatings were determined by XRD and SEM. Their electrochemical properties were studied by polarization curve and cyclic voltammetry. Trivalent chromium electroplating using Ti/IrO2+Ta2O5 anodes is carried out and the results were analyzed. Results show that this anode exhibits excellent electrochemical activity and stability in sulfate electrolysis. The electrocatalytic activity is determined not only by the content of IrO2 but also the structure and morphology of the anode coatings. The electroplating results indicats that Ti/IrO2+Ta2O5 anodes have excellent capabilities and merits in improving the stability of trivalent chromium electroplating in sulfate system. The preparation process and properties of the thermally prepared Ti anodes coated with IrO2+Ta2O5 was studied. The structure and morphologies of the IrO2+Ta2O5 coatings were determined by XRD and SEM. Their electrochemical properties were studied by polarization curve and cyclic voltammetry. Trivalent chromium electroplating using Ti/IrO2+Ta2O5 anodes is carried out and the results were analyzed. Results show that this anode exhibits excellent electrochemical activity and stability in sulfate electrolysis. The electrocatalytic activity is determined not only by the content of IrO2 but also the structure and morphology of the anode coatings. The electroplating results indicats that Ti/IrO2+Ta2O5 anodes have excellent capabilities and merits in improving the stability of trivalent chromium electroplating in sulfate system.
作者 LI Baosong LIN An GAN Fuxing
机构地区 Department of Environmental Engineering
出处 《Rare Metals》 SCIE EI CAS CSCD 2006年第z1期645-649,共5页 稀有金属（英文版）
关键词 IrO2+Ta2O5 trivalent chromium electroplating oxygen evolution oxide coated anode IrO2+Ta2O5 trivalent chromium electroplating oxygen evolution oxide coated anode
分类号 TG146.4 [金属学及工艺—金属材料]
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参考文献7

  • 1[1]Hu Jiming,Wu Jixun,Meng Huimin,et al.,Degradation characteristics of Ti/(IrO2+Ta2O2)coating anodes in H2SO4 solution.Transactions of Nonferrous Metals Society of China,2000,10:511.
  • 2[2]Hu Jiming,Zhang Jianqing,and Cao Chunan,Thermolytic formation and microstructure of IrO2+Ta2O5 mixed oxide anodes from chloride precursor.Thermochimica Acta,2003,403:257.
  • 3[3]Ryuichi Otogawa,Masatsugu Morimitsu,and Morio Matsunaga,Effects of microstructure of IrO2-based anodes on electrocatalytic properties.Electrochimica Acta,1998,44:1509.
  • 4[4]Hong G,Siow K S,and Zhiqiang G,Hard chromium plating from trivalent chromium solution.Plating and Surface Finishing,2001,88(3):69.
  • 5[5]Song Y.B.,and Chin D.T.,Pulse plating of hard chromium from trivalentbaths.Plating and Surface Finishing,2000,87:80.
  • 6[6]Mcdougall J.,EL-Shrif M.,and Ma S.,Chromium electrodeposition usinga chromium(Ⅲ)glycine complex.Journal of applied electrochemistry,1998,28:929.
  • 7[7]Edigaryan A.A.,and Polukarov Y.M.,On the possibility of replacing standard chromium-plating electrolytes with sulfate-oxalate solutions of Cr(Ⅲ).Russian Journal of Applied Chemistry,2003,76(2):323.

同被引文献19

  • 1李保松,林安,甘复兴.Preparation and electrocatalytic properties of Ti/IrO_2-Ta_2O_5 anodes for oxygen evolution[J].中国有色金属学会会刊：英文版,2006,16(5):1193-1199. 被引量：18
  • 2Vykhodtseva V N, Edigaryan A A, Lubnin E N, et al.Composition, Structure, and Corrosion-Electrochemical Properties of Chromium Coatings Deposited from Chromium( Ⅲ ) Electrolytes Containing Formic Acid and Its Derivatives [J]. Russian Journal of Electrochemistry, 2004,40(4) : 387-393.
  • 3Li B S, Lin A, Gan F X. Preparation and Characterization of Cr-P Coatings by Electrodeposition from Trivalent Chromium Electrolytes Using Malonic Acid as Complex [J]. Surface & Coating Technology, 2006,201(6) :2578-2586.
  • 4Kuznetsov V V, Vinokurov E G, Azarko O E. Kinetics of Cathodic Reactions in Electrolytes Based on Trivalent Chromium Sulfate [J]. Russian Journal of Electrochemistry, 1999,35 (6) : 698-699.
  • 5Kuznetsov V V, Vinokurov E G, Kudryavtsev V N.Effect of Hydrodynamic Electrolysis Conditions on the Kinetics of Cathodic Processes in Chromium ( Ⅲ ) Sulfate Electrolytes [J]. Russian Journal of Electrochemistry, 2000,36 (7) : 756-760.
  • 6Baraldi P, Soragni E, Fontanesi C,et al. On the Kinetics of Chromium Electrodeposition on Copper Electrodes [J]. Journal of Alloys and Compounds, 2001,317:612-618.
  • 7Polukarov Y M, Safonov V A, Edigaryan A A.Chrome Plating from Sulfate-Oxalate Cr (Ⅲ) Baths:Structure, Composition, and Corrosion Behavior [J].Protection of Metals ,2005,37(5) :447-451.
  • 8Edigaryan A A, Safonov V A, Lubnin E N, et al.Properties and Preparation of Amorphous Chromium Carbide Electroplates [J]. Electrochimica Acta, 2002,47 : 2775-2786.
  • 9Song Y B, Chin D T. Pulse Plating of Hard Chromium from Trivalent Baths [J]. Plating & Surface Finishing, 2000,87(9) :80-87.
  • 10Song Y B, Chin D T. Current Efficiency and Polarization Behavior of Trivalent Chromium Electrodeposition Process [J]. Electrochimica Acta, 2002,48 (4) : 349-356.

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Rare Metals
2006年 第z1期

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