Superior electrochemical activity of α-Fe2O3/rGO nanocomposite for advance energy storage devices

被引：153
作者：
Aadil, Muhammad [1 ]
Shaheen, Wajeeha [1 ]
Warsi, Muhammad Farooq [1 ]
Shahid, Muhammad [1 ]
Khan, Muhammad Azhar [2 ]
Ali, Zahid [3 ]
Haider, Sajjad [4 ]
Shakir, Imran [5 ]
机构：
[1] Islamia Univ Bahawalpur, Dept Chem, Bahawalpur 63100, Pakistan
[2] Islamia Univ Bahawalpur, Dept Phys, Bahawalpur 63100, Pakistan
[3] Natl Inst Lasers & Optron, Islamabad 45650, Pakistan
[4] King Saud Univ, Coll Engn, Dept Chem Engn, Riyadh 11421, Saudi Arabia
[5] King Saud Univ, Coll Engn, Sustainable Energy Technol, Riyadh, Saudi Arabia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 689卷
关键词：
alpha-Fe2O3; nanoparticles; Reduced graphene oxide; Nanocomposite; Supercapacitor; Electrical measurements; REDUCED GRAPHENE OXIDE; PERFORMANCE ELECTRODE MATERIAL; HYDROTHERMAL FABRICATION; FE2O3/GRAPHENE COMPOSITE; ANODE MATERIAL; SUPERCAPACITORS; CAPACITANCE; CARBON; NANOWIRES; NANOTUBES;
D O I：
10.1016/j.jallcom.2016.08.029
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A nanocomposite containing alpha-Fe2O3 nanoparticles entangled with reduced graphene oxide nanosheets have been synthesized via simple hydrothermal and ultra-sonication method. It is observed that graphene nanosheets enhanced the electrical conductivity and electrochemical activity of alpha-Fe2O3 nanoparticles. The superior electrical conductivity of alpha- Fe2O3/rGO nanocomposite was confirmed by two probe current-voltage (I-V) measurements. The enhanced electrochemical activity of alpha- Fe2O3/rGO nanocomposite was confirmed by electrochemical impedance spectroscopy measurements and cyclic voltammetry experiments. It is observed that as-prepared alpha-Fe2O3/rGO nanocomposite has superior charge-transfer resistance and higher specific capacitance than bare alpha-Fe2O3 nanoparticles. Moreover, nanocomposite retained 75% of the initial capacitance after 1000 cycles. Due to tremendous electrochemical performance, the alpha- Fe2O3/rGO nanocomposite have potential applications in energy storage devices. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：648 / 654
页数：7
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