Carbon Coated MoO3 Nanowires/Graphene oxide Ternary Nanocomposite for High-Performance Supercapacitors

被引：95
作者：
Shaheen, Wajeeha [1 ]
Warsi, Muhammad Farooq [1 ]
Shahid, Muhammad [1 ]
Khan, Muhammad Azhar [2 ]
Asghar, M. [2 ]
Ali, Zahid [3 ]
Sarfraz, Mansoor [4 ]
Anwar, Hafeez [5 ]
Nadeem, Muhammad [6 ]
Shakir, Imran [4 ]
机构：
[1] Islamia Univ Bahawalpur, Dept Chem, Baghdad Ul Jadeed Campus, Bahawalpur 63100, Pakistan
[2] Islamia Univ Bahawalpur, Dept Phys, Baghdad Ul Jadeed Campus, Bahawalpur 63100, Pakistan
[3] Natl Inst Lasers & Optron, PO Nilore, Islamabad 45650, Pakistan
[4] King Saud Univ, Coll Engn, Ctr Sustainable Energy Technol, Riyadh, Saudi Arabia
[5] Univ Agr Faisalabad, Dept Phys, Faisalabad, Pakistan
[6] PDO, Prod Chem Dept, Muscat, Oman
来源：
ELECTROCHIMICA ACTA | 2016年 / 219卷
关键词：
alpha-MoO3; nanowires; carbon coating; Graphene; Nanocomposites; Supercapacitors; electrical properties; REDUCED GRAPHENE OXIDE; ENERGY-STORAGE DEVICES; ALPHA-MOO3; NANOBELTS; COMPOSITE ELECTRODE; MOLYBDENUM OXIDE; ELECTROCHEMICAL PERFORMANCE; STRUCTURAL-CHANGES; FACILE SYNTHESIS; NANOSTRUCTURES; CAPACITANCE;
D O I：
10.1016/j.electacta.2016.09.069
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A ternary nanocomposite of molybdenum trioxide (alpha-MoO3) nanowires coated with a thin layer of carbon, which is intertwined with graphene oxide is synthesized by hydrothermal and ultrasonication route. It is found that high conductivity of carbon coated MoO3 nanowires is further increased by introducing the graphene sheets. The ternary nanocomposite (rGO/MoO3@C) exhibits high specific capacitance, excellent cyclic stability compared to the carbon coated MoO3 (MoO3@C) and virginal MoO3 nanowires due to the synergistic effect of carbon layer and graphene. The electrochemical impedance measurements show that rGO/MoO3@C nanocomposite have lower charge transfer resistance as compared to MoO3@C and MoO3 nanowires electrodes. Two probe electrical conductivity (I-V) measurements confirm the enhanced conductivity of rGO/MoO3@C nanocomposite relative to MoO3@C and bare MoO3 nanowires. The electrical and electrochemical measurements indicate that the rGO/MoO3@C nanocomposite is promising candidate for energy storage applications. (C) 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：330 / 338
页数：9
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