孟长功

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:中科院金属所

学位:博士

所在单位:化工学院

学科:无机化学

办公地点:大连理工大学化学楼401

联系方式:13940825088

电子邮箱:cgmeng@dlut.edu.cn

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Hydrothermal transformation of magadiite into ferrierite in Al2O3-Na2O-ethylenediamine-H2O system

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论文类型:期刊论文

发表时间:2011-12-01

发表刊物:SOLID STATE SCIENCES

收录刊物:Scopus、SCIE、EI

卷号:13

期号:12

页面范围:2124-2128

ISSN号:1293-2558

关键字:Magadiite; Zeolite; Synthesis; Transformation; Characterization

摘要:This study investigated the transformation of magadiite into ferrierite in Al2O3-Na2O-ethylenediamine (EDA)-H2O system. The influence of various parameters such as reaction temperature, time, alkalinity, the reactant Na2O/SiO2 ratio and EDA/SiO2 ratio were examined. Thermal and acid stability of the synthetic ferrierite are presented. Highly crystallized and pure ferrierite could be obtained from dispersion with the molar composition: 0.01 Na2O: 0.005 Al2O3: SiO2: 30 H2O: 20 EDA by heating at 433 K for 48 h. The structure of ferrierite was destroyed when the temperature rose above 873 K and the framework of the sample, stirred in 5 mol/L HCl for 3 h, is consistent with the untreated ferrierite. (C) 2011 Published by Elsevier Masson SAS.