کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1627292 1516449 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical behaviour of a tin electrode in tartaric acid solutions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Electrochemical behaviour of a tin electrode in tartaric acid solutions
چکیده انگلیسی

The electrochemical behaviour of tin in tartaric acid solutions was investigated using potentiodynamic and galvanostatic techniques. The E/I curves showed that the anodic behaviour of tin exhibits active/passive transition. In the active dissolution potential region, tin dissolves as Sn(II) species, which are subsequently oxidized to Sn(IV). The active dissolution of tin increases with increasing tartaric acid concentration, sweep rate and temperature. Passivation is due to formation of Sn(OH)4 and/or SnO2 film on the anode surface. The dissolution process is controlled by diffusion. The E/t curves displayed that the time needed to active passive transition increases with increasing acid concentration and temperature but decreases with increasing imposing anodic current density.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 424, Issues 1–2, 9 November 2006, Pages 88–92
نویسندگان
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