Preparation of Porous Carbon Materials by Using Coagulated Polyamic acid Precursor

Title
Preparation of Porous Carbon Materials by Using Coagulated Polyamic acid Precursor
Authors
최용문이도훈여현욱유남호고문주
Keywords
coagulation; porous carbon; surface area; capacitor; polyimide; porous polymer; pore size
Issue Date
2014-10
Publisher
Macromolecular research
Citation
VOL 22, NO 10, 1050-1052
Abstract
In recent years, porous carbon materials have received a great deal of attention due to their many applications. Especially, activated carbon materials are potentially of great technological interest for the development of catalytic,1-3 electronic,4,5 fuel cells,6 and hydrogen storage systems.7 However, there are many complex and risky chemical activation process for improving the surface area of carbon materials.8 Polyimides (PIs), which are synthesized by the thermal imidization of poly(amic acid) (PAA) precursors, have been adapted as a carbonization precursors because of their high carbonization yield and homogeneously shrinking property during carbonization. From these reasons, many kinds of carbon materials as like highly oriented graphite films,9 macroporous carbons,10 and carbon thin membranes are prepared from PIs.11,12 In this study, we demonstrated a new preparation method of porous carbon from a polyamic acid precursor without any chemical activation process. We prepared porous 6FDA-HAB PAA with coagulation method (Scheme I). By virtue of the high carbonization yield and homogeneous shrinking properties of 6FDA-HAB PAA, we successfully manufactured carbon materials with a porous channel structure. The structured carbon materials showed a high surface area of 1668 m2/g.
URI
http://pubs.kist.re.kr/handle/201004/48281
ISSN
15985032
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KIST Publication > Article
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