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Direct fabrication of bimodal mesoporous carbon by nanocasting

Wua, Dingcai and Liang, Yeru and Yang, Xiaoqing and Li, Zhenghui and Zou, Chong and Zeng, Xianhua and Lv, Guifen and Fu, Ruowen (2008) Direct fabrication of bimodal mesoporous carbon by nanocasting. Microporous and Mesoporous Materials , 116 . pp. 91-94.

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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 dryinginduced collapse of superfluous silica frameworks. Moreover, the diameter of large mesopores can be easily tailored by the ratio of methylated b-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 m2/g) and large mesopore volumes (e.g. 2.18 cm3/g).

Item Type:Article
Subjects:Technology > Manufacturing processes for nanotechnology
ID Code:4573
Deposited By:CSMNT
Deposited On:08 Apr 2009 04:14
Last Modified:08 Apr 2009 04:14

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