Pore size control of wormholelike mesoporous carbons

被引：37

作者：

Wu, Dingcai ^{[1
]}

Li, Zhenghui ^{[1
]}

Liang, Yeru ^{[1
]}

Yang, Xiaoqing ^{[1
]}

Zeng, Xianhua ^{[1
]}

Fu, Ruowen ^{[1
]}

机构：

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

来源：

CARBON | 2009年 / 47卷 / 03期

关键词：

DIRECT FABRICATION; NANOPOROUS CARBON; SILICA;

D O I：

10.1016/j.carbon.2008.12.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple and efficient method to tailor the pore size of wormholelike mesoporous carbons (WMCs) has been developed by adding a proper amount of hydrofluoric acid (HF) during the sol-gel process of tetraethyl orthosilicate (TEOS). It was found that the pore size increased obviously from 3.1 to 8.5 nm when increasing HF/TEOS molar ratio from 0 to 1/7. Brunauer-Emmett-Teller surface area decreased accordingly. in addition, mesopore volume of WMCs basically kept unvaried due to their identical silica template amount. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：916 / 918

页数：3

共 7 条

[1] Direct preparation of nanoporous carbon by nanocasting [J].