Supercapacitor Studies on Ni/NiO Nanocomposites Synthesized by Humble Sol-gel route with Variation of Ni2+: CA ratio

被引：2
|
作者：
Das, Himadri Tanaya [1 ]
Elumulai, P. [1 ]
机构：
[1] Pondicherry Univ, Dept Green Energy Technol, Madanjeet Sch Green Energy Technol, Pondicherry 605014, India
来源：
61ST DAE-SOLID STATE PHYSICS SYMPOSIUM | 2017年 / 1832卷
关键词：
Energy storage; Supercapacitor; Nickel oxide; sol-gel; Nanocomposites; Coulombic efficiency;
D O I：
10.1063/1.4980434
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Ni/NiO nanocomposites were prepared by citrate-assisted humble sol-gel method with key variation of metal nitrate and citric acid. A series of samples were obtained and characterized by X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscope (SEM) and UV-VIS spectroscopy. All samples were tested by cyclic voltammetry (CV) and galvanostatic charge-discharge studies. Excitingly, the Ni/NiO composite resulted from 1: 1 ratio exhibited a highest specific capacitance of 350 F g(-1) at 0.5 Ag-1 with excellent stability and coulombic efficiency. This investigation has opened a wide window for exploring other transition metal-oxides systems, such that potential nanocomposites can be generated for energy storage applications.
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页数：3
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