کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1471692 990357 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical reduction of ferric corrosion products and evaluation of galvanic coupling with iron
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Electrochemical reduction of ferric corrosion products and evaluation of galvanic coupling with iron
چکیده انگلیسی

Ferric product powders were synthesised. The purity of each compound was controlled by FTIR and XRD analysis; the BET surface area and electrical conductivity were also reported. The galvanostatic electrochemical reduction of graphite/ferric product composite electrodes was investigated at 25 °C in mildly alkaline pH-buffered solutions containing chloride, sulphate or bicarbonate anions. The efficiency of the reduction process (FeIII-to-FeII reaction) was quantified by reporting the potential value obtained at half the transition time, Eτ/2, on the E–t transient, as a function of Qτ, the coulombic charge obtained at the end of the reduction. The possibilities for a galvanic coupling to occur have been discussed based on the reduction efficiency plots and corrosion potential values of iron in the various media.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 48, Issue 8, August 2006, Pages 2050–2063
نویسندگان
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