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Ti/IrO2-Ta2O5-SnO2納米氧化物陽(yáng)極的研究
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Study on the Nanostructured Ti/IrO2-Ta2O5-SnO2 Oxide Anodes
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    摘要:

    采用Pechini方法制備不同Sn含量的Ti/IrO2-Ta2O5-SnO2納米氧化物陽(yáng)極，并運(yùn)用SEM、EDX、XRD等分析手段和析氧電位、循環(huán)伏安、強(qiáng)化電解等方法對(duì)陽(yáng)極的表面形貌、微觀結(jié)構(gòu)和電化學(xué)性能進(jìn)行研究。結(jié)果表明，制備的氧化物涂層由(IrSn)O2固溶體和非晶態(tài)的Ta2O5構(gòu)成，組成與名義成分基本一致。隨著Sn含量的增加，氧化物涂層表面裂紋增多。Sn的加入使Ti/IrO2-Ta2O5-SnO2氧化物陽(yáng)極的析氧電位升高，穩(wěn)定性降低

    Abstract:

    Nanostructured Ti/IrO2-Ta2O5-SnO2 oxide anodes with different Sn content were prepared by Pechini method. The surface morphology and microstructure were analyzed by SEM, EDX and XRD. The electrochemical activity and stability were investigated by electrochemical testing including oxygen evolving potential measurement, cyclic voltammetry, and accelerated life test. The results indicate that the oxide coatings are composed of (IrSn)O2 solid solution and amorphous Ta2O5, with the composition close to the nominal one. With the increase of Sn content, more microcracks appear on the anode surface. The addition of Sn into the IrO2-Ta2O5-SnO2 oxide coating increases the oxygen evolving potential and lowers the electrochemical stability

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唐 益,許立坤,王均濤,辛永磊,龍 萍. Ti/IrO2-Ta2O5-SnO2納米氧化物陽(yáng)極的研究[J].稀有金屬材料與工程,2010,39(4):687~691.[Tang Yi, Xu Likun, Wang Juntao, Xin Yonglei, Long Ping. Study on the Nanostructured Ti/IrO2-Ta2O5-SnO2 Oxide Anodes[J]. Rare Metal Materials and Engineering,2010,39(4):687~691.]
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  • 收稿日期:2009-04-28
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