“蒸汽相转化”法制备球形多级Y沸石（英文）  

Sphere-like Hierarchical Y Zeolite Fabricated by Steam-assisted Conversion Method

作　　者：杜艳泽[1,2] 杨晓娜 宁伟巍 孔庆岚 秦波 郑家军 李文林[1] 李瑞丰 DU Yan-Ze;YANG Xiao-Na;NING Wei-Wei;KONG Qing-Lan;QIN Bo;ZHENG Jia-Jun;LI Wen-Lin;LI Rui-Feng(Key Laboratory of Coal Science and Technology MOE,Research Centre of Energy Chemical&Catalytic Technology,Taiyuan University of Technology,Taiyuan 030024,China;Dalian Research Institute of Petroleum&Petrochemicals,SINOPEC,Dalian 116045,China)

机构地区：[1]太原理工大学能源化工与催化研究中心煤科学与技术教育部与山西省重点实验室,太原030024 [2]中国石油化工集团大连石油化工研究院,大连116045

出　　处：《无机材料学报》2019年第2期225-232,共8页Journal of Inorganic Materials

基　　金：National Natural Science Foundation of China(U1463209,21371129,21376157);Sino Petroleum Corp(116050)

摘　　要：本文采用"蒸汽相转化"法合成了球形多级Y沸石。采用X射线衍射(XRD),扫描电镜(SEM),透射电子显微镜(TEM), N2吸附-脱附,固态核磁共振(NMR)谱和傅里叶变换红外(IR)光谱等表征手段对制备材料的结构性能进行了表征。SEM观察结果表明合成的Y型沸石是由尺寸为50～300 nm的初级晶粒组成的球形多晶聚集体,透射电镜观察结果表明多晶聚集体为空心Y型沸石。通过分析FT-IR, 29Si NMR, SEM和TEM等表征结果,提出了空心球形Y沸石的形成机理。Sphere-like hierarchical Y zeolite was synthesized by a“steam-assisted conversion(SAC)”procedure.The as-synthesized samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),N2 adsorption-desorption,solid-state nuclear magnetic resonance(NMR)spectra,and Fourier transform infrared(IR)spectroscopy.Results observed by SEM displayed that the as-synthesized Y zeolite was sphere-like polycrystalline aggregates composed of primary crystals with size of about 50-300 nm.These results exhibited that some polycrystalline aggregates were hollow Y zeolite spheres.Combined with characterization results of FT-IR,29Si NMR,SEM,and TEM,a mechanism illustrating formation of the hollow Y zeolite polycrystalline spheres was proposed.

关 键 词：多级孔 多晶聚集体 空心球 “蒸汽相转化”法 

分 类 号：TQ174[化学工程—陶瓷工业]