材料科学
超级电容器
聚吡咯
X射线光电子能谱
复合数
碳纳米管
化学工程
扫描电子显微镜
氧化物
复合材料
电化学
纳米技术
电极
冶金
化学
物理化学
工程类
聚合物
聚合
作者
Hemraj M. Yadav,Sivalingam Ramesh,K. Ashok Kumar,Surendra K. Shinde,Sanjay Sandhu,A. Sivasamy,Nabeen K. Shrestha,Heung Soo Kim,Hyun‐Seok Kim,Chinna Bathula
出处
期刊:Polymer Testing
[Elsevier]
日期:2020-09-01
卷期号:89: 106727-106727
被引量:31
标识
DOI:10.1016/j.polymertesting.2020.106727
摘要
In this article we report the synthesis of polypyrrole incorporated nickel oxide multi walled carbon nanotube ([email protected]/PPy) composites by thermal reduction protocol for supercapacitor applications. The structural and morphological properties of the composites were confirmed by the aid of X-ray diffraction (XRD), Field-emission scanning electron microscope (FE-SEM) with energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and Field-emission transmission electron microscopy (FE-TEM) analysis indicating the hexagonal crystal structure of NiO decorated on NMWCNT/Ppy. The electrochemical characteristics of the [email protected]/PPy composite were analyzed in the presence of 2 M KOH as an electrolyte. The [email protected]/PPy nanostructured composite produced a plenty of active sites for ion migration reactions that facilitate the energy storage mechanism. As a proof of concept demonstration, the [email protected]/PPy composite was explored as an electrode materials in supercapacitor and exhibited specific capacitance of 395 F g−1 and cyclic stability up to 5000 cycles at 0.5 A g−1. Enhanced performance of composite is attributed to the incorporation of polypyrrole in [email protected] The improved capacitance and cyclic stability demonstrated by the composite indicates the [email protected]/PPy to be a promising candidate for supercapacitor applications.
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