Hierarchical Nickel Cobaltate/Manganese Dioxide Core-Shell Nanowire Arrays on Graphene-Decorated Nickel Foam for High-Performance Supercapacitors

被引:42
作者
Chen, Hao [1 ]
Hsieh, Chien-Kuo [2 ]
Yang, Yue [1 ]
Liu, Xiao Ying [1 ]
Lin, Che-Hsien [3 ]
Tsai, Chuen-Horng [3 ]
Wen, Zhong Quan [4 ]
Dong, Fan [5 ]
Zhang, Yu Xin [1 ,4 ]
机构
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Ming Chi Univ Technol, Dept Mat Engn, New Taipei 24301, Taiwan
[3] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu 30013, Taiwan
[4] Chongqing Univ, Natl Key Lab Fundamental Sci Micro Nanodevices &, Chongqing 400044, Peoples R China
[5] Chongqing Technol & Business Univ, Chongqing Key Lab Catalysis & Funct Organ Mol, Coll Environm & Biol Engn, Chongqing 400067, Peoples R China
基金
中国国家自然科学基金;
关键词
electrode materials; graphene; manganese dioxide; nickel cobaltate; supercapacitors; ENERGY-STORAGE; NI FOAM; FACILE SYNTHESIS; ELECTRODES; NANOSHEETS; NANOTUBES; OXIDE; ARCHITECTURES; CAPACITANCE; MECHANISM;
D O I
10.1002/celc.201700041
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Hierarchical NiCo2O4@MnO2 core-shell nanowire arrays have been synthesized on graphene-nickel foam as binder-free electrodes. The thickness of MnO2 nanosheets can be controlled by different hydrothermal reaction times, and a whole array of unique NiCo2O4@MnO2 nanostructures have been synthesized and investigated successfully for supercapacitor applications. The graphene deposited on nickel foam can enhance the electrical conductivity of electrode materials and strengthen corrosion resistance of the current collector. As a result, NiCo2O4@MnO2 core-shell arrays electrode exhibits an ultra-high specific capacitance of 2125 Fg(-1) at a current density of 1 Ag-1, outstanding cycling stability (93.4% of its initial value after 5000 cycles) and good rate performance. In addition, an asymmetric supercapacitor based on NiCo2O4@MnO2 as the positive electrode and activated graphene (AG) as the negative electrode achieves an energy density of 27.8 Whkg(-1) at a power density of 400.3 WKg(-1). These notable findings suggest that the unique NiCo2O4@MnO2 core-shell nanostructure on graphene-nickel foam is a potential candidate for application as a high-performance supercapacitor electrode.
引用
收藏
页码:2414 / 2422
页数:9
相关论文
共 51 条
[31]   Superior performance asymmetric supercapacitors based on ZnCo2O4@MnO2 core-shell electrode [J].
Ma, Wenqin ;
Nan, Honghong ;
Gu, Zhengxiang ;
Geng, Baoyou ;
Zhang, Xiaojun .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (10) :5442-5448
[32]   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
[33]   Conductive "Smart" Hybrid Hydrogels with PNIPAM and Nanostructured Conductive Polymers [J].
Shi, Ye ;
Ma, Chongbo ;
Peng, Lele ;
Yu, Guihua .
ADVANCED FUNCTIONAL MATERIALS, 2015, 25 (08) :1219-1225
[34]   Development of oxidation and corrosion resistance hydrophobic graphene oxide-polymer composite coating on copper [J].
Singh, Bimal P. ;
Jena, Bikash Kumar ;
Bhattacharjee, Sarama ;
Besra, Laxmidhar .
SURFACE & COATINGS TECHNOLOGY, 2013, 232 :475-481
[35]   The production of a corrosion resistant graphene reinforced composite coating on copper by electrophoretic deposition [J].
Singh, Bimal P. ;
Nayak, Sasmita ;
Nanda, Kamala K. ;
Jena, Bikash Kumar ;
Bhattacharjee, Sarama ;
Besra, Laxmidhar .
CARBON, 2013, 61 :47-56
[36]   Hierarchically Porous Ni-Co Oxide for High Reversibility Asymmetric Full-Cell Supercapacitors [J].
Tang, Chunhua ;
Tang, Zhe ;
Gong, Hao .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (05) :A651-A656
[37]   Charge storage mechanism of MnO2 electrode used in aqueous electrochemical capacitor [J].
Toupin, M ;
Brousse, T ;
Bélanger, D .
CHEMISTRY OF MATERIALS, 2004, 16 (16) :3184-3190
[38]   Optimizing the charge transfer process by designing Co3O4@PPy@MnO2 ternary core-shell composite [J].
Wang, Bin ;
He, Xinyi ;
Li, Hongpeng ;
Liu, Qi ;
Wang, Jun ;
Yu, Lei ;
Yan, Huijun ;
Li, Zhanshuang ;
Wang, Peng .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (32) :12968-12973
[39]   ZnCo2O4 nanowire arrays grown on nickel foam for high-performance pseudocapacitors [J].
Wang, Shubo ;
Pu, Jun ;
Tong, Yao ;
Cheng, Yuanyuan ;
Gao, Yan ;
Wang, Zhenghua .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (15) :5434-5440
[40]   Manganese oxide-based materials as electrochemical supercapacitor electrodes [J].
Wei, Weifeng ;
Cui, Xinwei ;
Chen, Weixing ;
Ivey, Douglas G. .
CHEMICAL SOCIETY REVIEWS, 2011, 40 (03) :1697-1721