Direct fabrication of bimodal mesoporous carbon by nanocasting

被引：34

作者：

Wu, Dingcai ^{[1
]}

Liang, Yeru ^{[1
]}

Yang, Xiaoqing ^{[1
]}

Li, Zhenghui ^{[1
]}

Zou, Chong ^{[1
]}

Zeng, Xianhua ^{[1
]}

Lv, Guifen ^{[1
]}

Fu, Ruowen ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, PCFM Lab, Inst Mat Sci,Inst Optoelect & Funct Composite Mat, Guangzhou 510275, Guangdong, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2008年 / 116卷 / 1-3期

关键词：

Bimodal mesoporous carbon; Nanocasting; Preparation; In situ;

D O I：

10.1016/j.micromeso.2008.03.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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 p-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). (C) 2008 Elsevier Inc. All rights reserved.

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页码：91 / 94

页数：4

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