Journal
CARBON
Volume 47, Issue 3, Pages 916-918Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2008.12.027
Keywords
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Funding
- NNSFC [50472029, 50632040, 50802116]
- Natural Scientific Foundation of Guangdong Province [8451027501001421]
- Scientific Foundation of Guangzhou [2007Z2-D2041]
- Sun Yat-sen University [1131211]
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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.
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