The authors thank Norit for kindly supplying the activated carbon adsorbent. C.O.A. thanks MEC, Spain, for financial support (EX2004-0612). The kind help of R. Benoit for the XPS data is acknowledged.
The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template†
Article first published online: 18 JUN 2007
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 17, Issue 11, pages 1828–1836, July, 2007
How to Cite
Ania, C. O., Khomenko, V., Raymundo-Piñero, E., Parra, J. B. and Béguin, F. (2007), The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template. Adv. Funct. Mater., 17: 1828–1836. doi: 10.1002/adfm.200600961
- Issue published online: 12 JUL 2007
- Article first published online: 18 JUN 2007
- Manuscript Revised: 19 MAR 2007
- Manuscript Received: 13 OCT 2006
- MEC. Grant Number: EX2004-0612
- Microporous materials;
- Template-directed assembly;
A novel microporous templated carbon material doped with nitrogen is synthesized by using a two-step nanocasting process using acrylonitrile (AN) and propylene as precursors, and Na–Y zeolite as a scaffold. Liquid-phase impregnation and in situ polymerization of the nitrogenated precursor inside the nanochannels of the inorganic scaffold, followed by gas-phase impregnation with propylene, enables pore-size control and functionality tuning of the resulting carbon material. The material thereby obtained has a narrow pore-size distribution (PSD), within the micropore range, and a large amount of heteroatoms (i.e., oxygen and nitrogen). In addition, the carbon material inherits the ordered structure of the inorganic host. Such features simultaneously present in the carbon result in it being ideal for use as an electrode in a supercapacitor. Although presenting a moderately developed specific surface area (SBET = 1680 m2 g–1), the templated carbon material displays a large gravimetric capacitance (340 F g–1) in aqueous media because of the combined electrochemical activity of the heteroatoms and the accessible porosity. This material can operate at 1.2 V in an aqueous medium with good cycleability—-beyond 10 000 cycles—and is extremely promising for use in the development of high-energy-density supercapacitors.