Al2O3 Disk Supported Si3N4 Hydrogen Purification Membrane for Low Temperature Polymer Electrolyte Membrane Fuel Cells

Membranes

Xiaoteng Liu²  Paul A. Christensen²  Stephen M. Kelly¹  Vincent Rocher¹ 

[1] Department of Chemistry, University of Hull, Cottingham Road, Hull HU6 7RX, UK; E-Mails:;School of Chemical Engineering and Advanced Materials, Merz Court, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; E-Mails:

关键词: Al₂O₃ disk supported Si₃N₄ membrane;    hydrogen purification;    CO removal;    fuel cells;    Pt catalyst;   

DOI  :  10.3390/membranes3040406

来源: mdpi

【 摘 要 】

Reformate gas, a commonly employed fuel for polymer electrolyte membrane fuel cells (PEMFCs), contains carbon monoxide, which poisons Pt-containing anodes in such devices. A novel, low-cost mesoporous Si₃N₄ selective gas separation material was tested as a hydrogen clean-up membrane to remove CO from simulated feed gas to single-cell PEMFC, employing Nafion as the polymer electrolyte membrane. Polarization and power density measurements and gas chromatography showed a clear effect of separating the CO from the gas mixture; the performance and durability of the fuel cell was thereby significantly improved.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.