Preparation of silicalite-1 microtube arrays supported on cordierite honeycomb by using palm fibers as templates
Preparation of silicalite-1 hollow fibers and silicalite-1 microtube arrays grown in the cells of the cordierite honeycomb using palm fibers as the templates was presented. XRD, SEM, nitrogen adsorption-desorption and ultrasonic vibration were used to characterize the silicalite-1/palm fiber and silicalite-1 microtube arrays /cordierite honeycomb composites. It was found that a layer of uniform silicalite-1 film was grown on the palm fiber after 18 h of hydrothermal synthesis. When a single palm fiber was immersed in the synthesis solution, single silicalite-1 hollow fiber with an inner diameter of ca. 230 m was formed after syntheses for 2 cycles and remove-off of the template. By inserting a bundle of palm fibers into the cells of the honeycomb, silicalite-1 microtube arrays could be fabricated in the cells of the honeycomb through hydrothermal synthesis and after easily removing the palm fibers. The loadings of silicalite-1 on the honeycomb were as high as 91 and 117 g silicalite-1/ 100 g honeycomb after 2 and 3 cycles of hydrothermal syntheses, respectively. Ultrasonic vibration test results indicated that the composite was mechanically strong enough.
Weiwei Liu Lixiong Zhang Huanting Wang Nanping Xu
College of Chemistry and Chemical Engineering, Key Laboratory of Materials-oriented Chemical Enginee Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）