Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 33, Issue 13, Pages 1149-1153Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201200020
Keywords
layer-by-layer assembly; nitrogen-doped carbon; poly(ionic liquid); pyrolysis; template
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Funding
- Sino-German center [GZ 725]
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Layer-by-layer (LbL) assembly technique is applied for the first time for the preparation of nitrogen-doped carbon capsules. This approach uses colloid silica as template and two polymeric deposition components, that is, poly(ammonium acrylate) and a poly (ionic liquid) poly(3-cyanomethyl-1-vinylimidazolium bromide), which acts as both the carbon precursor and nitrogen source. Nitrogen-doped carbon capsules are prepared successfully by polymer wrapping, subsequent carbonization and template removal. The as-synthesized carbon capsules contain 7 wt% of nitrogen and have a structured specific surface area of 423 m2 g-1. Their application as supercapacitor has been briefly introduced. This work proves that LbL assembly methodology is available for preparing carbon structures of complex morphology.
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