کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1285071 973114 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Asymmetric capacitor based on superior porous Ni–Zn–Co oxide/hydroxide and carbon electrodes
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Asymmetric capacitor based on superior porous Ni–Zn–Co oxide/hydroxide and carbon electrodes
چکیده انگلیسی

Hierarchical porous multi-phase Ni–Zn–Co oxide/hydroxide is synthesized by using metal-organic framework-5 (MOF-5) as the template. Hierarchical porous carbon is obtained by the facile direct decomposition of the MOF-5 framework with phenolic resin. The structures and textures are characterized by X-ray diffraction, high-resolution transmission electron microscopy, scanning electron microscopy, and nitrogen sorption at 77 K. An asymmetric capacitor incorporating the Ni–Zn–Co oxide/hydroxide as the positive electrode and the porous carbon as the negative electrode is fabricated. A maximum energy density of 41.65 Wh kg−1 is obtained, which outperforms many other available asymmetric capacitors. The asymmetric capacitor also shows a good high-rate performance, possessing an energy density of 16.62 Wh kg−1 at the power density of about 2900 W kg−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 195, Issue 9, 1 May 2010, Pages 3017–3024
نویسندگان
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