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Hydrogen Permeation Performance of Ni-BaZr0.1Ce0.7Y0.2O3-δ Metal-Ceramic Hollow Fiber Membrane
Chun-li Yang1, Qi-ming Xu1, Zhi-wen Zhu2, Wei Liu*2
1.Postdoctoral Mobile Research Station of Materials Science and Engineering, Xi'an University of Ar-chitecture and Technology, Xi'an 710055, China;2.CAS Key Laboratory of Energy Conversion Materials, Department of Materials Science and Engi-neering, University of Science and Technology of China, Hefei 230026, China
Abstract:
A dense Ni-BaZr0.1Ce0.7Y0.2O3-δ (BZCY) cermet hollow fiber is fabricated by sintering NiO-BZCY hollow fiber precursors prepared by phase inversion method in 5%H2/95%Ar and its hydrogen permeation performance is investigated. The Ni-BZCY hollow fiber membrane possesses a “sandwich” structure. Finger-like structures are observed near both the inner and outer surfaces, while a dense layer is present in the center part. With 200 mL/min wet 20%H2/80%N2 on the shell side and 150 mL/min high purity Ar on the core side, the hydrogen permeation flux through the Ni-BZCY hollow fiber membrane at 900 oC is 0.53 μmol/cm2s. Owing to a high packing density, the hydrogen permeation flux per unit volume is greatly improved and membrane components composed of an assembly of hollow fibers may be applied in industrial hydrogen separation.
Key words:  Hollow fiber, Cermet, Hydrogen permeation, Phase inversion
FundProject:
Ni-BaZr0.1Ce0.7Y0.2O3-δ金属-陶瓷中空纤维膜的氢渗透性能
杨春利1, 许启明1, 朱志文2, 刘卫*2
1.西安建筑科技大学材料科学与工程博士后科研流动站,西安710055;2.中国科学技术大学材料科学与工程系,中国科学院能量转换材料重点实验室,合肥230026)
摘要:
通过将相转化法制备的Ni-BaZr0.1Ce0.7Y0.2O3-δ(BZCY)纤维膜生坯在5%H2/95%Ar混合气体中直接烧结, 制备出了气密具有“三明治”结构的Ni-BZCY金属陶瓷中空纤维膜. 靠近内外表面是指状孔结构而中间部分是致密层. 当膜管外湿润的20%H2/80%N2混合气体流量是200 mL/min,膜管内高纯Ar气的流量是150 mL/min时,Ni-BZCY中空纤维膜的氢渗透率达到了0.53 μmol/cm2s.
关键词:  中空纤维,金属陶瓷,氢渗透,相转化
DOI:10.1088/1674-0068/25/02/125-128
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