含杂原子分子筛B-Al-EU-1的快速合成与表征  

RAPID SYNTHESIS AND CHARACTERIZATION OF HETEROATOMIC ZEOLITE B-Al-EU-1

作　　者：杨冬花[1] 周朋燕[1] 赵君芙[2] 李晓峰[3] 窦涛[3,4] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024 [2]太原理工大学材料科学和工程学院,山西太原030024 [3]太原理工大学精细化工研究所,山西太原030024 [4]中国石油天然气集团公司催化重点实验室,北京102249

出　　处：《石油学报（石油加工）》2010年第3期371-375,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家重点基础研究发展规划"973"项目(2004CB217806);国家自然科学基金项目(20476060)资助

摘　　要：在HMBr2-Na2O-Al2O3-SiO2-H3BO3-H2O体系中,采用固相法快速合成了高结晶度的硼硅铝分子筛B-Al-EU-1,合成时间由水热法的168h缩短至48h。采用XRD、XPS、TG-DTG和FT-IR等手段,对合成的B-Al-EU-1分子筛进行了表征。结果表明,随着B的加入,B-Al-EU-1分子筛中晶胞体积收缩,FT-IR骨架振动频率向高波数方向移动,在约906cm-1处出现Si—O—B对称伸缩振动谱带;B-Al-EU-1分子筛中B1s电子结合能与偏硼酸HBO2中B1s的电子结合能非常接近,表明B原子进入分子筛骨架,并且以四配位方式存在。与水热体系合成的同种分子筛相比,固相法合成的B-Al-EU-1分子筛的晶胞体积明显变小。B-Al-EU-1 zeolite was synthesized in HMBr2-Na2O-Al2O3-SiO2-H3BO3-H2O system by solid phase transformation with the crystallization time of 48 h,which was greatly shorter than the crystallization time of 168 h in preparation of the sample by hydrothermal method.The prepared B-Al-EU-1 samples were characterized by XRD,FT-IR,TG-DTG and XPS techniques.The results showed that with the addition of B,the unit cell volume of B-Al-EU-1 prepared by solid phase transformation shrank and the vibration band of its framework shifted to higher wave number and the symmetric stretching band of Si—O—B appeared at about 906 cm-1 in FT-IR spectrum,and the bonding energy of B1s in B-Al-EU-1 was similar to that in HBO2,indicating that B atoms substituted the Al atoms in the framework with a tetrahedral coordination.The unit cell volume of B-Al-EU-1 prepared by solid phase transformation was obviously smaller than that prepared by hydrothermal method.

关 键 词：B-Al-EU-1分子筛 杂原子 晶胞参数 固相法 

分 类 号：O643.36[理学—物理化学] O613.8[理学—化学]