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Well-Defined Core-Shell Carbon Black/Polypyrrole Nanocomposites for Electrochemical Energy Storage
被引:72
|作者:
Yang, Chao
[1
,2
]
Liu, Peng
[1
,2
]
Wang, Tingmei
[3
]
机构:
[1] Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
关键词:
carbon black;
polypyrrole;
core-shell nanocomposites;
electrode materials;
supercapacitors;
COMPOSITE ELECTRODE;
CONDUCTING-POLYMER;
POLYPYRROLE;
SUPERCAPACITORS;
PLATINUM;
CATALYST;
DIOXIDE;
D O I:
10.1021/am1012529
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
The well-defined core-shell carbon black/polypyrrole (CB/PPy) nanocomposites were prepared via the in situ chemical oxidative polymerization of pyrrole from the surfaces of the carbon black (CB) nanoparticles, with poly(2-hydroxy-3-(methacryloyloxy) propane-1-sulfonate) (PHMAS) as both the surfactant and the dopant. The nanocomposites exhibited the high conductivity at room temperature and the weakly temperature dependence of conductivity from 283 to 423 K. When the core-shell CB/PPy nanocomposites were used as the electrode materials for the supercapacitors, the maximum discharge capacity of 366 F/g was achieved, after being corrected for the weight percentage of the PPy phase at the current density of 5 mA/cm(2) in 1.0 M NaNO3 electrolyte solution.
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页码:1109 / 1114
页数:6
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