학술논문
One-pot synthesis of TEA functionalized and NiSe embedded rGO nanocomposites for supercapacitor application.
Document Type
Article
Author
Source
Subject
*POWER density
*NANOCOMPOSITE materials
*ENERGY density
*CRYSTAL structure
*OXIDATION states
*SUPERCAPACITOR electrodes
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Language
ISSN
1477-9226
Abstract
NiSe and NG-NiSe (triethanolamine functionalized and NiSe embedded rGO), as electrode materials for supercapacitor application, were prepared by a hydrothermal technique. XRD confirmed the formation of pure NiSe and NG-NiSe nanocomposites, which showed a hexagonal crystalline structure of NiSe. The structural morphology and particle size of NiSe and NG-NiSe were measured using FESEM and HRTEM analysis, respectively. The oxidation states and elemental compositions of NG-NiSe were investigated by XPS. The electrochemical behaviours of the materials were studied using CV, GCD, and EIS spectra. NG-NiSe showed higher capacitance performance compared to pure NiSe, due to the synergetic effects on the rGO/TEA/NiSe nanocomposite during one-pot synthesis. The energy density and power density of a N-rGO//NG-NiSe asymmetric cell were 28.25 W h kg−1 and 700 W kg−1, respectively. [ABSTRACT FROM AUTHOR]