Direct fabrication of bimodal mesoporous carbon by nanocasting

Bimodal mesoporous carbons were successfully prepared by a simple one-step templating method. The template of large mesopores in our method is the in situ formed silica nano-agglomerate from the drying-induced collapse of superfluous silica frameworks. Moreover, the diameter of large mesopores can b...

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Bibliographic Details
Published inMicroporous and mesoporous materials Vol. 116; no. 1; pp. 91 - 94
Main Authors Wu, Dingcai, Liang, Yeru, Yang, Xiaoqing, Li, Zhenghui, Zou, Chong, Zeng, Xianhua, Lv, Guifen, Fu, Ruowen
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Inc 01.12.2008
Elsevier
Subjects
Bimodal mesoporous carbon
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
In situ
Nanocasting
Porous materials
Preparation
Nanocasting
Bimodal mesoporous carbon
Preparation
In situ
Carbon
Porous material
Mesoporosity
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Summary:Bimodal mesoporous carbons were successfully prepared by a simple one-step templating method. The template of large mesopores in our method is the in situ formed silica nano-agglomerate from the drying-induced collapse of superfluous silica frameworks. Moreover, the diameter of large mesopores can be easily tailored by the ratio of methylated β-cyclodextrin to tetramethyl orthosilicate (CD/TMOS), increasing with decreasing the CD/TMOS. The typical bimodal mesoporous carbons with 2.4 nm and ca. 24 nm diameter mesopores have great Brunauer–Emmett–Teller surface areas (e.g. 783 m 2/g) and large mesopore volumes (e.g. 2.18 cm 3/g).
ISSN:1387-1811
1873-3093
DOI:10.1016/j.micromeso.2008.03.018