کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6616982 | 459625 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile and large-scale chemical synthesis of highly porous secondary submicron/micron-sized NiCo2O4 materials for high-performance aqueous hybrid AC-NiCo2O4 electrochemical capacitors
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Highly porous nickel cobaltite (NiCo2O4) materials have been synthesized via a facile and scalable chemical synthesis route. The obtained NiCo2O4 material displays a typical secondary submicron/micron-sized (0.1-2 μm) agglomerate morphology, exhibiting large surface area (190.1 m2 gâ1) and high porosity (1.136 cm3 gâ1). The fabricated NiCo2O4 electrode shows high specific capacitance (351 F gâ1 at 1 A gâ1) and high-rate capability (82.1% capacitance retention at 8 A gâ1), which is superior to many reported NiCo2O4 materials. Further, the assembled AC-NiCo2O4 aqueous hybrid capacitor exhibits high power and energy densities (2805 W kgâ1, 6.8 Wh kgâ1 at 8 A gâ1) and high cycling stability (15% loss after 5000 cycles at 1.5 A gâ1). The high-performance of the NiCo2O4 materials is attributed to their large surface area and highly porous structure which contribute to rich surface electroactive sites and easy ions transport pathways for facile electrochemical reactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 494-502
Journal: Electrochimica Acta - Volume 107, 30 September 2013, Pages 494-502
نویسندگان
Rui Ding, Li Qi, Mingjun Jia, Hongyu Wang,