Influence of freeze-drying conditions on the mesoporosity of organic gels as carbon precursors
作者： H Tamon , H Ishizaka , T Yamamoto , T Suzuki
DOI: 10.1016/S0008-6223(99)00235-3
关键词:
摘要: Resorcinol–formaldehyde (RF) gels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde to prepare mesoporous carbon precursors. RF cryogels prepared freeze drying gels, where t-butanol and water used as solvents. The freezing temperature, the number repetitive rinse times t-butanol, sample size changed in preparation cryogels. Porous properties estimated N2 adsorption. influence freeze-drying conditions was elucidated on mesoporosity Freeze developed more mesopores than water. temperature did not greatly porous If repeatedly rinsed freeze-dried smaller sizes, favorable for use
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