Tightly connected MnO2-graphene with tunable energy density and power density for supercapacitor applications

被引:71
作者
Chen, Chih-Yao [1 ]
Fan, Chen-Yen [1 ]
Lee, Ming-Tsung [1 ]
Chang, Jeng-Kuei [1 ,2 ,3 ]
机构
[1] Natl Cent Univ, Inst Mat Sci & Engn, Tao Yuan, Taiwan
[2] Natl Cent Univ, Dept Chem & Mat Engn, Tao Yuan, Taiwan
[3] Natl Cent Univ, Dept Mech Engn, Tao Yuan, Taiwan
关键词
PERFORMANCE ELECTROCHEMICAL CAPACITORS; MANGANESE OXIDE; GRAPHENE; ELECTRODES; MNO2;
D O I
10.1039/c2jm16707g
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
MnO2 nanoparticles uniformly distributed and tightly anchored on graphene are prepared using an ethanol-assisted graphene-sacrifice reduction method, producing composite electrodes with tunable energy density (up to 12.6 Wh kg(-1)) and power density (up to 171 kW kg(-1)) via rational design of the oxide/graphene ratio.
引用
收藏
页码:7697 / 7700
页数:4
相关论文
共 24 条
[1]  
[Anonymous], 1999, ELECTROCHEMICAL SUPE
[2]   An overview of graphene in energy production and storage applications [J].
Brownson, Dale A. C. ;
Kampouris, Dimitrios K. ;
Banks, Craig E. .
JOURNAL OF POWER SOURCES, 2011, 196 (11) :4873-4885
[3]   Material characterization and electrochemical performance of hydrous manganese oxide electrodes for use in electrochemical pseudocapacitors [J].
Chang, JK ;
Tsai, WT .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (10) :A1333-A1338
[4]   Graphene Oxide-MnO2 Nanocomposites for Supercapacitors [J].
Chen, Sheng ;
Zhu, Junwu ;
Wu, Xiaodong ;
Han, Qiaofeng ;
Wang, Xin .
ACS NANO, 2010, 4 (05) :2822-2830
[5]   Graphene and nanostructured MnO2 composite electrodes for supercapacitors [J].
Cheng, Qian ;
Tang, Jie ;
Ma, Jun ;
Zhang, Han ;
Shinya, Norio ;
Qin, Lu-Chang .
CARBON, 2011, 49 (09) :2917-2925
[6]   Graphene Oxide, Highly Reduced Graphene Oxide, and Graphene: Versatile Building Blocks for Carbon-Based Materials [J].
Compton, Owen C. ;
Nguyen, SonBinh T. .
SMALL, 2010, 6 (06) :711-723
[7]   Asymmetric Supercapacitors Based on Graphene/MnO2 and Activated Carbon Nanofiber Electrodes with High Power and Energy Density [J].
Fan, Zhuangjun ;
Yan, Jun ;
Wei, Tong ;
Zhi, Linjie ;
Ning, Guoqing ;
Li, Tianyou ;
Wei, Fei .
ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (12) :2366-2375
[8]   Incorporation of homogeneous, nanoscale MnO2 within ultraporous carbon structures via self-limiting electroless deposition:: Implications for electrochemical capacitors [J].
Fischer, Anne E. ;
Pettigrew, Katherine A. ;
Rolison, Debra R. ;
Stroud, Rhonda M. ;
Long, Jeffrey W. .
NANO LETTERS, 2007, 7 (02) :281-286
[9]  
Gao W, 2009, NAT CHEM, V1, P403, DOI [10.1038/NCHEM.281, 10.1038/nchem.281]
[10]   Energy storage in electrochemical capacitors: designing functional materials to improve performance [J].
Hall, Peter J. ;
Mirzaeian, Mojtaba ;
Fletcher, S. Isobel ;
Sillars, Fiona B. ;
Rennie, Anthony J. R. ;
Shitta-Bey, Gbolahan O. ;
Wilson, Grant ;
Cruden, Andrew ;
Carter, Rebecca .
ENERGY & ENVIRONMENTAL SCIENCE, 2010, 3 (09) :1238-1251