采用热分解法和Pechini法制备了Ti/IrO2+Ta2O5阳极,通过SEM、极化曲线、循环伏安、电化学阻抗谱及强化电解寿命试验等测试手段,研究表面活性剂对Ti/IrO2+Ta2O5阳极微观结构和电催化性能的影响.结果表明,加入适量的表面活性剂十二烷基硫酸钠(SDS)可以明显改善涂液的涂刷性能;与热分解法相比,阳极表面呈现较多的龟裂纹,而且裂纹变宽加深,其电化学活性表面积增大,析氧电催化活性提高,但稳定性降低.
参考文献
| [1] | S. Trasatti .Electrocatalysis: understanding the success of DSA[J].Electrochimica Acta,2000(15/16):2377-2385. |
| [2] | 王科,韩严,王均涛,张晓玲,孙玉璞.涂液浓度对Ru-Ti-Ir氧化物阳极涂层性能的影响[J].电化学,2006(01):74-79. |
| [3] | XuL K;Scantlebury J D .A study on the deactivation of an IrO2-Ta2O5 coated titanium anode[J].Corrosion Science,2003,45:2729-2740. |
| [4] | Hu J M;Meng H M;Zhang J Q et al.Degradation mechanism of long service life Ti/IrO2-Ta2O5 oxide anodes in sulphuric acid[J].Corrosion Science,2002,44:1655-1668. |
| [5] | 初立英,许立坤,吴连波,王廷勇,王均涛,陈光章.草酸浸蚀对氧化物阳极形貌及电催化性能的影响[J].金属学报,2005(07):763-768. |
| [6] | Hu JM.;Zhang HQ.;Cao CN. .Thermolytic formation and microstructure of IrO2+Ta2O5 mixed oxide anodes from chloride precursors[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2003(2):257-266. |
| [7] | Panic V V;Dekanski A;Milonjic S K et al.RuO2TiO2 coated titanium anodes obtained by the sol-gel procedure and their electrochemical behaviour in the chlorine evolution reaction[J].Colloids and Surfaces,1999,157:269-274. |
| [8] | Terezo A J;Pereira E C .Preparation and characterisation of Ti/RuO2 anodes obtained by sol-gel and conventional routes[J].Materials Letters,2002,53:339-345. |
| [9] | Terezo A J;Pereira E c .Fractional factorial design applied to investigate properties of Ti/IrO2-Nb2O5 electrodes[J].Electrochimica Acta,2000,45:4351-4358. |
| [10] | Wang X;Tang D;Zhou J E .Microstructure,morphology and electrochemical property of RuO270SnO230 mol%and RuO230SnO270mol%coatings[J].Journal of Alloys and Compounds,2007,430:60-66. |
| [11] | Panic V.;Dekanski A.;Wang G.;Fedoroff M.;Milonjic S.;Nikolic B. .Morphology of RuO2-TiO2 coatings and TEM characterization of oxide sols used for their preparation[J].Journal of Colloid and Interface Science,2003(1):68-73. |
| [12] | Yang Liu;Zhiying Li;Jinghong Li .IrO_2/SnO_2 electrodes: prepared by sol-gel process and their electrocatalytic for pyrocatechol[J].Acta materialia,2004(3):721-727. |
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