Submicron mesoporous carbon spheres by ultrasonic emulsification
Submicron mesoporous carbon spheres by ultrasonic emulsification
复制标题
DOI：
10.1007/s10934-006-9082-2
复制
发表时间：
2008-06
影响因子：
2.6
通讯作者：
N. Tonanon;W. Intarapanya;W. Tanthapanichakoon;H. Nishihara;S. Mukai;H. Tamon
中科院分区：
文献类型：
--
作者：
N. Tonanon;W. Intarapanya;W. Tanthapanichakoon;H. Nishihara;S. Mukai;H. Tamon
本工作首先通过使用span80油包水乳化和超声分散制备间苯二酚-甲醛（RF）亚微米球，然后冷冻干燥和热解制备BET表面积为510-610 m2/g、介孔体积为0.86 cm3/g的亚微米介孔碳球。此外，超声波乳化可以明显改变表面纹理和介孔性质。与均质化和机械搅拌乳化相比，通过使用超声波乳化，可以观察到更多数量和更小尺寸的亚微米碳球。
In this work submicron mesoporous carbon spheres with the BET surface area of 510–610 m2/g and the mesopore volume of 0.86 cm3/g can be firstly obtained from carbonization of resorcinol-formaldehyde (RF) submicron spheres which are prepared from water-in-oil emulsification with span80 and ultrasonic dispersion followed by freeze drying and pyrolysis. Moreover, surface texture and mesoporous properties can be obviously changed by ultrasonic emulsification. By using ultrasonic emulsification, more number and much smaller size submicron carbon spheres can be observed compared to homogenized and mechanically stirred emulsifications.