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Preparation of mesoporous silica and carbon materials with multilength-scale pores and hydrogen sorption application

Title
Preparation of mesoporous silica and carbon materials with multilength-scale pores and hydrogen sorption application
Authors
Kwon T.-H.Jung S.Kim H.-J.Park S.Kim S.-J.Huh S.
Ewha Authors
김성진
SCOPUS Author ID
김성진scopus
Issue Date
2009
Journal Title
European Journal of Inorganic Chemistry
ISSN
1434-1948JCR Link
Citation
no. 19, pp. 2811 - 2816
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A facile method was developed for the preparation of bimodal mesoporous siliceous materials with nanostructured pores in which a cationic organic template, n-hexadecy1trimethylammonium hydroxide, was employed as a base catalyst as well as a mesopore structure-directing agent during the slow condensation of tetraethoxysilane. It was possible to alter the pore orientations of smaller pores by adding neutral, auxiliary templates such, as Brij76 and P123. A series of bio-modal mesoporous carbons was also obtained from the bimodal mesoporous silica materials through a nanocasting process. The resulting bimodal mesoporous carbons exhibited decent hydrogen uptake values at 77 K. The maximum hydrogen uptake was 1.33 wt.-% for the sample having the narrowest pores, while keeping a relatively large pore volume. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
DOI
10.1002/ejic.200900153
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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