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Synthesis of silica particles with lamellar and wormhole-like bi-modal mesopores using anionic surfactant as the template

Synthesis of silica particles with lamellar and wormhole-like bi-modal mesopores using anionic surfactant as the template
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摘要 Silica particles with lamellar and wormhole-like bi-modal mesopores have been synthesized using anionic surfactant (N-lauroylsarcosine sodium) as the template. The particles with diameters of 300―500 nm possess bi-modal mesopores with pore sizes of 3 nm and 12 nm, which were ascribed to the disordered wormhole-like mesophase and lamellar mesophase, respectively. The BET surface area of the particles was 536 m2/g and the pore volume was 0.83 cm3/g. The lamellar mesophase and cylindrical mesophase were formed due to the co-assembly of the anionic surfactant and its protonized polar oil. Silica particles with lamellar and wormhole-like bi-modal mesopores have been synthesized using anionic surfactant (N-lauroylsarcosine sodium) as the template. The particles with diameters of 300–500 nm possess bi-modal mesopores with pore sizes of 3 nm and 12 nm, which were ascribed to the disordered wormhole-like mesophase and lamellar mesophase, respectively. The BET surface area of the particles was 536 m2/g and the pore volume was 0.83 cm3/g. The lamellar mesophase and cylindrical mesophase were formed due to the co-assembly of the anionic surfactant and its protonized polar oil.
出处 《Science China Chemistry》 SCIE EI CAS 2009年第9期1423-1426,共4页 中国科学(化学英文版)
基金 Supported by the National Natural Science Foundation of China (Grant No. 20873070) the Program for New Century Excellent Talents in University (Grant No. NCET-07-0448)
关键词 LAMELLAR structure ANIONIC surfactant MESOPOROUS silica morphology N-lauroylsarcosine sodium lamellar structure anionic surfactant mesoporous silica morphology N-lauroylsarcosine sodium
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