Hierarchical a-Fe2O3/MnO2/rGO ternary composites as an electrode material for high performance supercapacitors application

被引:27
作者
Geerthana, M. [1 ]
Prabhu, S. [1 ]
Ramesh, R. [1 ]
机构
[1] Periyar Univ, Dept Phys, Salem 636011, India
关键词
Asymmetric supercapacitors; Graphene; Manganese oxide; Iron oxide; Electrochemical energy storage; PHASE;
D O I
10.1016/j.est.2021.103529
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Transition Metal oxide decorated graphene nanosheets have accumulated a lot of consideration due to their potential applications in electrochemical energy storage devices especially in supercapacitors (SCs). Nano structured mixed multi-metal oxides have been employed as promising electrodes for creating more active site for electron transfer. All-solid-state asymmetric supercapacitors (ASC) have significant theoretical capacitance, good rate capability, and excellent cycling stability suitable for energy storage device fabrication with optimum energy and power density. Here, we demonstrate a Solvothermal route to synthesis ternary alpha-Fe2O3/MnO2/rGO composites.. The hybrid ternary composites in 3-electrode configuration showed maximum capacitance of 447 F g(-1) at optimum current density at1Ag(-1) and 96 % of capacitance retention after 10,000 GCD cycles at 10 A g(-1 & nbsp;)in an alkaline medium. The fabricated ASC device with ternary composites (positive) and negative electrodes (rGO) separated by PVA/KOH gel-electrolyte separator exhibits maximum cell voltage of 1.4 V with high specific capacitance of 97 F g(-1) at 1 A g(-1). Additionally, the assembled device delivered a high energy density of 13.2 W h kg(-1 & nbsp;)and a high power density of 6124 W kg(-1) with an excellent capacitance retention of 92% and columbic efficiency of 96 % preserved over 5000 cycles at 10 A g(-1 & nbsp;)with good reversibility. Besides, the Solvothermal strategy supports for the fabrication of metal oxide could be applicable for other metal oxide electrode materials preparation.
引用
收藏
页数:10
相关论文
共 50 条
[41]   Facile Fabrication of MnO2/Graphene/Ni Foam Composites for High-Performance Supercapacitors [J].
Liu, Rui ;
Jiang, Rui ;
Chu, Yu-Han ;
Yang, Wein-Duo .
NANOMATERIALS, 2021, 11 (10)
[42]   Synthesis of hierarchically porous MnO2/rice husks derived carbon composite as high-performance electrode material for supercapacitors [J].
Yuan, Chuanjun ;
Lin, Haibo ;
Lu, Haiyan ;
Xing, Endong ;
Zhang, Yusi ;
Xie, Bingyao .
APPLIED ENERGY, 2016, 178 :260-268
[43]   MnO2 Nanoflake-Shelled Carbon Nanotube Particles for High-Performance Supercapacitors [J].
Gueon, Donghee ;
Moon, Jun Hyuk .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2017, 5 (03) :2445-2453
[44]   Hierarchical MnO2 Spheres Decorated by Carbon-Coated Cobalt Nanobeads: Low-Cost and High-Performance Electrode Materials for Supercapacitors [J].
Zhi, Jian ;
Reiser, Oliver ;
Huang, Fuqiang .
ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (13) :8452-8459
[45]   Ultralong MnO2 nanowires intercalated graphene/Co3O4 composites for asymmetric supercapacitors [J].
Van Hoa Nguyen ;
Van Chinh Tran ;
Kharismadewi, Dian ;
Shim, Jae-Jin .
MATERIALS LETTERS, 2015, 147 :123-127
[46]   Fast synthesis of δ-MnO2 for a high-performance supercapacitor electrode [J].
de Oliveira Cremonezzi, Josue Marciano ;
Tiba, Daniel Yaezu ;
Domingues, Sergio Humberto .
SN APPLIED SCIENCES, 2020, 2 (10)
[47]   Facile synthesis of mesoporous MnO2 microspheres for high performance AC//MnO2 aqueous hybrid supercapacitors [J].
Li, Hehe ;
Zhang, Xiangdong ;
Ding, Rui ;
Qi, Li ;
Wang, Hongyu .
ELECTROCHIMICA ACTA, 2013, 108 :497-505
[48]   Cube-like α-Fe2O3 Supported on Ordered Multimodal Porous Carbon as High Performance Electrode Material for Supercapacitors [J].
Chaudhari, Nitin K. ;
Chaudhari, Sudeshna ;
Yu, Jong-Sung .
CHEMSUSCHEM, 2014, 7 (11) :3102-3111
[49]   Mesoporous, hierarchical core/shell structured ZnCo2O4/MnO2 nanocone forests for high-performance supercapacitors [J].
Qiu, Kangwen ;
Lu, Yang ;
Zhang, Deyang ;
Cheng, Jinbing ;
Yan, Long ;
Xu, Jinyou ;
Liu, Xianming ;
Kim, Jang-Kyo ;
Luo, Yongsong .
NANO ENERGY, 2015, 11 :687-696
[50]   High-performance flexible electrode based on electrodeposition of polypyrrole/MnO2 on carbon cloth for supercapacitors [J].
Fan, Xingye ;
Wang, Xiaolei ;
Li, Ge ;
Yu, Aiping ;
Chen, Zhongwei .
JOURNAL OF POWER SOURCES, 2016, 326 :357-364