151. Self-Supporting Electrode Based-on SWNT Paper for Supercapacitors
- Author
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Lei He, Jian Fei Che, Lu Ming Qian, and Xiao Xu
- Subjects
Supercapacitor ,Materials science ,General Engineering ,Carbon nanotube ,Polypyrrole ,law.invention ,symbols.namesake ,chemistry.chemical_compound ,chemistry ,Polymerization ,law ,Electrode ,symbols ,Cyclic voltammetry ,van der Waals force ,Thin film ,Composite material - Abstract
Self-supporting film of single-walled carbon nanotubes (SWNTs), also known as SWNT paper, is held together by Van der Waals force without any chemical binders. Prepared by vacuum filtration method, SWNT paper was then decorated wirh polypyrrole (PPy) through pulsed potentio amperometric polymerization. The results indicated that the SWNT paper had a typical network structure, after polymerizing PPy, cauliflower-like structure was observed on the surface of SWNT ropes. The composite thin film has good cyclic voltammetry (CV) property and the specific capacitance wass ca.420Fg-1, which was much larger than that of pure SWNT paper.
- Published
- 2011