Mesoporous Carbon Nanofibers for Supercapacitor Application

Autor:	Yonggang Wang, Kai-Xue Wang, Haoshen Zhou, Eiji Hosono, Yarong Wang
Rok vydání:	2008
Předmět:	Supercapacitor Materials science Carbon nanofiber Electrolyte Surfaces Coatings and Films Electronic Optical and Magnetic Materials Mesoporous organosilica General Energy Chemical engineering Nanofiber Specific surface area Physical and Theoretical Chemistry Mesoporous material BET theory
Zdroj:	The Journal of Physical Chemistry C. 113:1093-1097
ISSN:	1932-7455 1932-7447
Popis:	Mesoporous carbon nanofibers have been prepared by a confined self-assembly of triblock copolymers with soluble low molecular weight phenolic resol within the channels of anodic alumina membranes. SEM and TEM observations showed that hexagonally arranged mesoporous channels were coiled concentrically around the longitudinal axis of the carbon nanofibers. These carbon nanofibers with BET surface area over 1424 m2 g−1 have been used as electrode materials for electrochemical capacitors tested in KOH and EC/DEC electrolyte solutions. Compared to mesoporous carbon prepared from the same precursor sol, these one-dimensional nanofibers could provide a shortened diffusion distance for electrolyte ions. The better performance of these mesoporous nanofibers greatly benefited from their high specific surface area, shortened diffusion distance, mesoporous openings on the outer surface, and well-controlled pore size. These mesoporous carbon nanofibers have been proved to be promising electrode materials for electroch...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ed42cbe321bc8e72bea077525fef7006 https://doi.org/10.1021/jp807463u Zobrazit plný text záznamu