کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1298422 | 1498410 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The influence of non-equilibrium defects on the anodic dissolution of a metal into a solid electrolyte
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The galvanostatic dissolution of a parent metal Me in an electrochemical cell of the type Me/MeX/Me (MeXÂ =Â cation-conducting solid electrolyte) causes periodic oscillations of the anodic overvoltage in a certain range of current density, pressure and temperature. The amplitude of these oscillations is a function of the applied mechanical pressure and their frequency depends on the electric current density. In the present study the electrode kinetics of transference cells of the type (+) Cu/AgBr/Ag (â) and (+) Cu/CuBr/Ag (â) have been investigated by galvanostatic measurements and linear sweep voltammetry, in order to obtain a better understanding of the nonlinear kinetics. During anodic dissolution the anode surface develops a porous structure which is correlated to the dislocation density of the anode. Linear sweep voltammetry measurements suggest that the rate-limiting step of anodic copper dissolution is the formation or the diffusion of metal adatoms on the metal electrode surface. A qualitative model for the influence of the processes on the oscillatory kinetics is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 177, Issues 5â6, February 2006, Pages 447-456
Journal: Solid State Ionics - Volume 177, Issues 5â6, February 2006, Pages 447-456
نویسندگان
Marcus Rohnke, Christian Rosenkranz, Jürgen Janek,