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Citation:
Zhang Rui-Feng, Yu Ya-Li, Chen Yu-Pu, Mi Tian-Ying. XPS STUDY OF CORROSION BEHAVIOUR OF TITANIUM IN H2C2O4 SOLUTION[J]. Acta Physico-Chimica Sinica,
;1990, 6(06): 681-685.
doi:
10.3866/PKU.WHXB19900609
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The corrosion behaviour of titanium substance and the XPS characterization of Ti surface in the H_2C_2O_4 solution have been first studied by X-ray photoelectron spec-troscopy. The experimental results show that there are only Ti~0 and Ti~(2+) on sample surface in 10% H_2C_2O_4 solution for two hours corrosion at 80 ℃, but if corrosion is extended to 4 hours, the surface composition is mainly TiO_2 with a small amount of Ti~(2+).
This result corresponds to the structure of TiH_(1.942) composion in sample surface found by XRD analysis. Since both TiO_2 and the surface coating RuO_2 are of Gald-Redstone structure, therefore electrode materials of Ti-Ru are stable in chemical industry. -
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