English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/10999
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template

AuthorsOvín Ania, María Concepción ; Khomenko, Volodymyr; Raymundo-Piñero, Encarnación; Parra Soto, José Bernardo ; Béguin, François
Microporous materials
Template-directed assembly
Issue Date18-Jun-2007
PublisherJohn Wiley & Sons
CitationAdvanced Functional Materials 17(11): 1828-1836 (2007)
AbstractA 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 (S_BET = 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.
Description9 pages, 7 figures.
Publisher version (URL)http://dx.doi.org/10.1002/adfm.200600961
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
Large_electrochemical_performance_Ania.pdf298,7 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.