Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 287, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.seppur.2022.120602
Keywords
Hydrogen separation; Perovskite membrane; Dual-layer hollow fiber; Galvanic hydrogen pumps
Categories
Funding
- National Natural Science Foundation of China, China [22178271, 91745116, 22178269]
- Tianjin Science and Technology Program, China [21ZYJDJC00100]
- FRC MOE T1 Project, Singapore [WBS: 0009184-00-00]
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BaCe0.7Zr0.1Y0.2O3-delta/Ni-BaCe0.7Zr0.1Y0.2O3-delta dual-layer hollow fiber membranes prepared by a co-spinning/co-sintering method can moderately control hydrogen permeation and achieve high hydrogen recovery rate in low concentration hydrogen streams.
BaCe0.7Zr0.1Y0.2O3-delta/Ni-BaCe0.7Zr0.1Y0.2O3-delta dual-layer hollow fiber membranes are prepared by a co-spinning/co-sintering method, which is a simple and practical technique to integrate the electrolyte (BaCe0.7Zr0.1Y0.2O3-delta) and the electrode (Ni-BaCe0.7Zr0.1Y0.2O3-delta). A galvanic hydrogen pump is assembled by using this dual-layer hollow fiber membrane for hydrogen separation from dilute H-2 streams, in which the hydrogen permeation can be moderately controlled by the applied voltage. At 550 degrees C and 2 V voltage, a hydrogen flux of 2.15 mL center dot min(-1)center dot cm(-2) and a hydrogen recovery rate of 81% are obtained when the feed is low concentration (13 vol%) H-2 stream. The one-step manufacturing method of integrating electrolytes and electrodes can be regarded as a more efficient method for the mass production of micro-tubular galvanic hydrogen pumps.
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