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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任，教育部智能材料化工前沿科学中心执行主任，大连理工大学膜科学与技术研究开发中心主任
性别：女
毕业院校：中国科学院大连化物所
学位：博士
所在单位：化工学院
学科：化学工程. 膜科学与技术. 生物医学工程
联系方式：hgaohong@dlut.edu.cn
电子邮箱：hgaohong@dlut.edu.cn
Facile In Situ Hydrothermal Synthesis of Layered Zirconium Phenylphosphonate Molecular Sieve Membranes with Optimized Microstructure and Superb H-2/CO2 Selectivity
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论文类型：期刊论文
发表时间：2021-04-04
发表刊物：ACS APPLIED MATERIALS & INTERFACES
卷号：12
期号：13
页面范围：15320-15327
ISSN号：1944-8244
关键字：membranes; zirconium phosphate; interlayer galleries; hydrothermal synthesis; cabron dioxide capture
摘要：Layered molecular sieve membranes containing uniform interlayer galleries have offered unprecedented opportunities to reach a performance far beyond the Robeson upper bound line. In this study, we took the initiative to prepare layered zirconium phenylphosphonate (ZrPP) molecular sieve membranes with optimized microstructure on tetragonal zirconia (t-ZrO2) buffer layer-modified porous alpha-Al2O3 substrates by facile in situ hydrothermal growth. Relying on the 3.2 A-sized gallery height and preferential CO2 adsorption behavior, prepared ZrPP membranes showed exceptional H-2/CO2 selectivity (>100) as well as considerable H-2 permeability. Furthermore, extraordinary thermal, mechanical, and chemical stability of ZrPP membranes made them potentially attractive for long-term operations under harsh conditions.