کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1691436 1011314 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved electrochemical capacitive characteristics by controlling the carbon nanotube morphology and electrolyte solution concentration
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Improved electrochemical capacitive characteristics by controlling the carbon nanotube morphology and electrolyte solution concentration
چکیده انگلیسی

Carbon nanotubes (CNTs) have been used as the electrochemical double layer in capacitor (EDLC) electrodes. CNTs were synthesized using thermal chemical vapor deposition (CVD) at a growth temperature of 750 °C by flowing C2H2. The surface morphology of the synthesized CNTs could be controlled with or without Al film deposition between the stainless (SUS) sheet and Fe catalyst film. Electrochemical measurements were performed in a three-electrode arrangement. H2SO4 with different concentrations was used as the electrolyte solution. The relation between the specific capacitance and the surface morphology of the CNTs and the electrolyte concentration were investigated. The results showed that the electrode formed using vertically aligned CNTs with higher electrolyte concentration exhibited higher specific capacitance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 83, Issue 3, 15 October 2008, Pages 629–632
نویسندگان
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