文献类型：期刊文章

作　　者：马英冲[1] 徐云鹏[2] 王少君[1] 王炳春[2] 田志坚[2] 余加祐[1] 林励吾[2]

机构地区：[1]大连轻工学院化学化工系,大连116034 [2]中国科学院大连化学物理研究所,大连116023

出　　处：《高等学校化学学报》

基　　金：国家重大基础研究计划(批准号:2003CB615805)资助

年　　份：2006

卷　　号：27

期　　号：4

起止页码：739-741

语　　种：中文

收录情况：AJ、BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、EI(收录号：2006249938700)、IC、JST、RCCSE、RSC、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：The simplest zeolite,sodalite(SOD),was synthesized iononic liquid-thermally from aqueous basic aluminosilicate precursor gels in an imidazolium-based ionic liquid,with 1-ethyl-3-methylimidazolium bromide as solvent.The synthesis was carried out at a temperature between 50 and 150 ℃ at an ambient pressure.The effects of mass ratios of aqueous gel to ionic liquid,molar ratios of n(Si)/n(Al) in gel and crystallization temperature and time on the crystallization were investigated.The morphology and structure of the as-prepared products were characterized by X-ray diffraction and scanning electron microscopy.The results show that a mixture of sodalite and zeolite X was initially precipitated in ionic liquid at a ratio 1∶3 of aqueous gel to ionic liquid,and finally transformed in to pure sodalite as the crystallisation time is prolonged,and the crystallinity of sodalite increased with the increase of n(Si)/n(Al) from 1.1 to 10.Increasing the ratio of aqueous gel to ionic liquid,zeolite X was favorable to crystallize,and it became the only product under the hydrothermal condition.

关 键 词：离子液体热合成法  沸石 方钠石 离子液体

分 类 号：O611.4] O64[化学类]