Hydrogen Permeation Performance of Ni-BaZr0.1Ce0.7Y0.2O3−δ Metal-Ceramic Hollow Fiber Membrane

Autor:	Qi-ming Xu, Wei Liu, Zhi-wen Zhu, Chun-li Yang
Rok vydání:	2012
Předmět:	Materials science Chromatography Hydrogen chemistry.chemical_element Sintering Cermet Core (optical fiber) Membrane Chemical engineering chemistry Hollow fiber membrane Fiber Physical and Theoretical Chemistry Phase inversion
Zdroj:	Chinese Journal of Chemical Physics. 25:125-128
ISSN:	2327-2244 1674-0068
DOI:	10.1088/1674-0068/25/02/125-128
Popis:	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 °C 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.
Databáze:	OpenAIRE
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