کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1294086 973589 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile approach to prepare loose-packed cobalt hydroxide nano-flakes materials for electrochemical capacitors
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Facile approach to prepare loose-packed cobalt hydroxide nano-flakes materials for electrochemical capacitors
چکیده انگلیسی

Cobalt hydroxide nano-flakes are successfully synthesized by a facile chemical precipitation method. Electrochemical characterization is performed using cyclic voltammetry, chronopotentiometry and impedance spectroscopy, respectively. These cobalt hydroxide nano-flakes maintain high utilization at high rates of discharge. A maximum specific capacitance of 735 F g−1 can be achieved in 2 M aqueous KOH with the potential range from −0.2 to 0.4 V (vs. SCE) in a half-cell setup configuration for the nano-flakes Co(OH)2 electrode, suggesting its potential application in electrochemical capacitors. Furthermore, the effect of annealing temperatures on the electrochemical capacitance characteristics is also been systematically explored.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 194, Issue 2, 1 December 2009, Pages 1194–1201
نویسندگان
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