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Preparation and characterization of petroleum‐pitch‐based carbon aerogels
Author(s) -
Zeng Xianhua,
Wu Dingcai,
Fu Ruowen
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29436
Subject(s) - furfural , carbonization , acetic acid , sulfuric acid , toluene , materials science , catalysis , carbon fibers , chemical engineering , polymerization , aerogel , polymer , organic chemistry , polymer chemistry , nuclear chemistry , chemistry , composite material , scanning electron microscope , composite number , engineering
Carbon aerogels were prepared by the sol–gel polymerization of petroleum pitches followed by ambient‐pressure drying and then carbonization. Furfural and sulfuric acid were found to be the best crosslinking agent and best catalyst for the reaction system, respectively. It was necessary to add acetic acid as a cosolvent, and the volume ratio of toluene to acetic acid played an important role in the mass densities of the samples. The average diameters of the nanonetwork particles of the typical carbon aerogels thus obtained were about 30–40 nm, and their surface areas were over 360 m 2 /g. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009