کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
191475 459722 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron transfer across a conducting nanowire (nanotube)/electrolyte solution interface
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Electron transfer across a conducting nanowire (nanotube)/electrolyte solution interface
چکیده انگلیسی

The reduction of anions (considering hexacyanoferrate (III) as example) at charged conducting cylinders of nano-size, i.e., metal wires or carbon tubes, in contact with electrolyte solution is explored over a wide range of overpotentials. Two key parameters contributing to the current (solvent reorganization energy and work terms) are addressed in the framework of a quantum mechanical theory of electron transfer. It is argued that double layer effects play a crucial role and entail a significant rise of the current density as compared with plain metal electrodes. The stationary diffusion to a nanocylinder was found to proceed much faster, which results in an additional enhancement of the current. Some qualitative effects of the electron transfer across a conducting nanocylinder are discussed (in part, the appearance of an inverted Arrhenius plot).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 1, 15 December 2009, Pages 68–77
نویسندگان
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