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Synthesis of mesoporous carbons using silica templates impregnated with mineral acids

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Title
Synthesis of mesoporous carbons using silica templates impregnated with mineral acids
Author(s)
Yongbeom Seo; Kyoungsoo Kim; Younjae Jung; Ryong Ryoo
Publication Date
2015-05
Journal
MICROPOROUS AND MESOPOROUS MATERIALS, v.207, no., pp.156 - 162
Publisher
ELSEVIER SCIENCE BV
Abstract
The pore walls of SBA-15, SBA-16 and KIT-6 mesoporous silica were acidified via the impregnation of phosphoric acid or sulfuric acid prior to their use as a template for mesoporous carbon synthesis with furfuryl alcohol. The effect of acid functionalization on carbon synthesis was investigated using X-ray powder diffraction, N2 adsorption, transmission electron microscopy, and solid-state 13C and 31P NMR spectroscopy. The results indicated that a significant portion of the impregnated mineral acid formed an ester with the surface silanol group. Therefore, the impregnated acid could lead to the selective formation of carbon frameworks inside the template pores, preventing external carbon deposition even when furfuryl alcohol was used excessively. The mineral acid impregnation yielded highly faithful carbon replicas of the mesoporous silica.
URI
https://pr.ibs.re.kr/handle/8788114/1671
ISSN
1387-1811
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
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