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

被引：159

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

页码：648 / 654

页数：7

共 42 条

[1] Specific Capacitance and Cyclic Stability of Graphene Based Metal/Metal Oxide Nanocomposites: A Review [J].