聚苯胺
超级电容器
石墨烯
材料科学
电极
复合材料
复合数
三元运算
储能
电容
纳米技术
聚合
聚合物
化学
计算机科学
功率(物理)
量子力学
物理
物理化学
程序设计语言
作者
Anjli Gupta,Silki Sardana,Jasvir Dalal,Sushma Lather,A.S. Maan,Rahul Tripathi,R. Punia,Kuldeep Singh,Anil Ohlan
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2020-06-18
卷期号:3 (7): 6434-6446
被引量:123
标识
DOI:10.1021/acsaem.0c00684
摘要
In recent years, the demand for high-performance flexible and portable electronics with high power/energy density has increased rapidly. Currently, the flexible devices have seized the interest of researchers in energy storage especially, supercapacitors and batteries. Working on the same line, ternary nanostructured polyaniline/Fe2O3-decorated graphene (PGF) composite hydrogel coated on carbon cloth has been prepared as a potential electrode material for flexible supercapacitor. Different compositions of aniline to Fe2O3-decorated graphene have been synthesized by in situ chemical oxidative polymerization. The ternary composite hydrogel on carbon cloth exhibits a high specific capacitance of 1124 F/g at a current density of 0.25 A/g in 1 M H2SO4. The symmetrical supercapacitor has shown high rate capability (∼82.2% at 7.5 A/g) as well as excellent cycling stability. The excellent electrochemical performance of ternary composites hydrogel have been realized because of the well-designed cross-linked hydrogel structure, high surface area, and synergistic effects among all three constituents. This outstanding performance holds great potential for next-generation flexible supercapacitors.
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