Anatase and rutile TiO2 macrocellular foams:: Air-liquid foaming sol-gel process towards controlling cell sizes, morphologies, and topologies

被引:67
作者
Carn, F
Colin, A
Achard, MF
Deleuze, H
Sanchez, C
Backov, R
机构
[1] CNRS, Ctr Rech Paul Pascal, UPR 8641, F-33600 Pessac, France
[2] CNRS, Lab Futur, UMR, FRE 2771, F-33607 Pessac, France
[3] Univ Bordeaux 1, Chim Organ & Organomet Lab, CNRS, UMR 5802, F-33045 Talence, France
[4] Univ Paris 06, CNRS, UMR 7574, Lab Chim Mat Condensee, F-75252 Paris, France
关键词
D O I
10.1002/adma.200401080
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Titania foams (see Figure) can be produced using a non-static air-liquid foaming sol-gel process where nitrogen is bubbled through a mixture of a surfactant and a sol-gel precursor. Either anatase or rutile phase mesoporous titania foams are produced upon thermal treatment. Macroscopic cell morphologies can be tuned by changing the air-to-liquid-foam ratios and the size of the nitrogen bubbles, while wall topologies can be varied by changing surfactant.
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页码:62 / +
页数:6
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