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Use of Electrochemical Impedance Spectroscopy to Study the Corrosion of Tin in Citrate Solution
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نویسنده
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Zobayri D. Es’hagh ,Rouhollahi Ahmad ,Hadi Mojtaba ,Khajesharifi Habibollah
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منبع
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analytical and bioanalytical electrochemistry - 2009 - دوره : 1 - شماره : 4 - صفحه:239 -245
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چکیده
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The corrosion and passivation of tin anode in citrate (0.01 to 1.0 m) solutionwas investigated using steady state polarization, impedance spectroscopy and cyclicvoltammetric techniques. before permanent passive region, two anodic peaks wereobserved in the anodic polarization curve, corresponding to the consecutiveelectroformation of sn(ii) and sn(iv) species. the corrosion current was calculated bythe tafel extrapolation procedure at different concentrations of citrate ion and differentph values. also, the corrosion resistance at the corrosion potential was calculated fromthe nyquist diagram of different concentration of citrate ion. it was found the lattergives more precise results.
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کلیدواژه
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Tin electrode ,Corrosion ,Passivity ,Impedance spectroscopy
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آدرس
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k.n.toosi university of technology, ایران, k.n.toosi university of technology, ایران, k.n.toosi university of technology, ایران, yasouj university, ایران
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Authors
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