Document Detail


Three-Dimensional Graphene-based Macro- and Meso-porous Frameworks for High Performance Electrochemical Capacitive Energy Storage.
MedLine Citation:
PMID:  23148416     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Three-dimensional graphene-based frameworks (3D-GFs) with hierarchical macro- and meso-porous structures are presented. The interconnected macropores are derived from hydrothermally assembled 3D graphene aerogels (GAs) while the mesopores are generated by the silica networks uniformly grown on the surface of graphene. The resulting 3D-GFs exhibit narrow mesopore size distribution (2~3.5 nm), high surface area, and low mass density. These intriguing features render 3D-GFs a promising template for creating various 3D porous materials. Specifically, 3D GA based mesoporous carbons (GA-MC) and metal oxide hybrids (GA-Co3O4, GA-RuO2) can be successfully constructed via a nanocasting technology. Benefiting from the integration of meso- and macro-porous structures, 3D GA-MC manifests outstanding specific capacitance (226 F g-1), high rate capability and excellent cycling stability (no capacitance loss after 5000 cycles) when it is applied in electrochemical capacitors.
Authors:
Zhong-Shuai Wu; Yi Sun; Yuan-Zhi Tan; Shubin Yang; Xinliang Feng; Klaus Mullen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-14
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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