کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7873790 | 1509344 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hierarchical sheet-like Ni-Co layered double hydroxide derived from a MOF template for high-performance supercapacitors
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Metal-organic frameworks (MOFs) are particularly attractive as a promising alternative in the field of energy storage and conversion. However, it exhibits limited electrochemical performance owing to their intrinsic instability and poor conductivity. In order to obtain more conductive electrode materials suitable for supercapacitor, a simple and effective precursor conversion method is explored to synthesize Ni-Co layered double hydroxides (LDH) composite using Co-Ni metal-organic framework (Co-Ni-MOF) as sacrificed template and precursor. The MOF-derived amorphous LDH composite is found to have a sheet-like structure, which can provide favorable paths for electrolyte penetration and also enhance the contact area of active material and electrolyte. The electrochemical data demonstrate that LDH composite delivers a specific capacitance of 1265Â FÂ gâ1 at the current density of 1Â AÂ gâ1 superior to Co-Ni-MOF (570Â FÂ gâ1 at 1Â AÂ gâ1), good cyclic stability and also a relatively low resistance. These results suggest the flexible LDH synthesized by a facile method could potentially be applied for supercapacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 234, December 2017, Pages 154-160
Journal: Synthetic Metals - Volume 234, December 2017, Pages 154-160
نویسندگان
Feifei Cao, Mengyu Gan, Li Ma, Xiurong Li, Fabing Yan, Menghan Ye, Yanfang Zhai, You Zhou,