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耐酸非貴金屬Ti／MO2陽極SnO2＋Sb2O4中間層研究
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TG146.23

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國家自然科學(xué)基金（20276054）;山西省自然科學(xué)基金（20031024,20031025）


Study of SnO2+Sb2O4 Intermediate Layer in Non-Noble Metal Ti/MO2 Anode
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    摘要:

    采用熱分解法制備了非貴金屬Sn02＋Sb204中間層Ti基MO2活性層電極，利用SEM，XRD和XPS方法對(duì)中間層進(jìn)行了表征。測定了Ti／SnO2＋Sb2Od／MnO2和Ti／SnO2＋Sb2O4／PbO2電極在硫酸溶液中的析氧極化曲線，二者起始析氧過電位均比貴金屬??；考察了在高電流密度（4A／cm^2）下的加速壽命，二者依次分別達(dá)到18h和86h。實(shí)驗(yàn)表明，SnO2＋Sb2O4是一種具有良好導(dǎo)電性和結(jié)合力的耐酸Ti基MO2電極中間層材料。

    Abstract:

    Acid-proof Ti based-MO2 anodes with SnO2+Sb2O4 intermediate layer were prepared by thermal decomposition method, the surface characterization of the electrodes were studied by scanning electron microscopy (SEM), elements composition and valence state of SnO2+Sb2O4 intermediate layers were analyzed with X-ray Diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS), respectively. The polarization curves of oxygen evolution and high density (4 A/cm2) lifetime of Ti/SnO2+ Sb2O4/MnO2 and Ti/ SnO2+Sb2O4/PbO2 anodes were determined in 1.0 mol/L H2SO4 solution. Their potentials of initial oxygen evolution were lower than those of moble metals, and their lifetimes reached 18 h and 86 h, respectively. The experiment showed that the combination of SnO2+Sb2O4 is a better intermediate layer material and will play a important role in Ti/MnO2 and Ti/PbO2 anodes.

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梁鎮(zhèn)海 張福元 孫彥平.耐酸非貴金屬Ti／MO2陽極SnO2＋Sb2O4中間層研究[J].稀有金屬材料與工程,2006,35(10):1605~1609.[Liang Zhenhai, Zhang Fuyuan, Sun Yanping. Study of SnO2+Sb2O4 Intermediate Layer in Non-Noble Metal Ti/MO2 Anode[J]. Rare Metal Materials and Engineering,2006,35(10):1605~1609.]
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  • 收稿日期:2006-04-07
  • 最后修改日期:2006-04-07
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