B_2O_3/MCM-41的制备和结构表征  

Preparation and Structural Characterization of B2O3/MCM-41 Material

作　　者：李正平[1] 高濂[1] 

机构地区：[1]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050

出　　处：《无机材料学报》2004年第1期249-252,共4页Journal of Inorganic Materials

摘　　要：以硼酸三丁酯为硼源,用溶液液相移植的方法制备了B2O3/MCM-41材料.用DTA、 XRD、FTIR、XPS和氮气吸附-脱附曲线等手段表征了合成的材料.结果表明:硼物种发 生析晶,以B2O3的形式存在,硼的配位状态为三配位的BO3结构单元.The B2O3/MCM-41 material was prepared by the solution-grafting method, using tri-butyl borate as boron source. DTA, XRD, FTIR, XPS and N-2 adsorption-desorption isotherms were employed to characterize the synthesized materials. The results show that boron specie separates out and exists as cubic B2O3 after calcining at 400degreesC. The trigonal BO3 is as the basic coordinated unit in B2O3/MCM-41. The solution-grafting and following calcination have little effect on the structure of MCM-41 host.

关 键 词：B2O3 MCM—41 液相移植 

分 类 号：TB383[一般工业技术—材料科学与工程]