Design and investigation of dual-layer electrodes for proton exchange membrane fuel cells
MetadataShow full item record
With an aim to develop a proton-exchange-membrane fuel cell (PEMFC) with improved water management, catalyst-coated membranes based upon Nafion 212 membrane with electrodes of dual-layer structure which consist of one hydrophilic layer of Pt/C + Nafion and one hydrophobic layer of Pt/C + PTFE arranged in a proper order, is specifically designed and successfully fabricated by a facile high-temperature spray deposition technique. Dual-layer structured anode and cathode are separately evaluated by electrochemical performance in single cells. Effect of relative thickness of the dual layers in the electrode on the cell performance is investigated. No improvement in cell performance is observed by adopting the dual-layer structure for the anode as compared to conventional anode with single hydrophilic catalyst layer. However, better cell performance is observed for the cell with dual-layer structured cathode, and the optimal cell reaches a peak power density of about 800 mW cm- 2 at 50 °C with humidified hydrogen and oxygen as fuel and oxidant respectively. © 2013 Elsevier B.V.
Showing items related by title, author, creator and subject.
Stably coating loose and electronegative thin layer on anion exchange membrane for efficient and selective monovalent anion transferZhang, H.; Ding, R.; Zhang, Y.; Shi, B.; Wang, J.; Liu, Jian (2017)© 2017 Elsevier B.V. Herein, a novel thin electronegative layer with loosely porous structure is fabricated through interfacial polymerization of benzene-rich monomer (2,5-diaminobenzenesulfonic acid (DSA) or 3,5-diaminobenzoic ...
Fabrication and performance of a carbon dioxide-tolerant proton-conducting solid oxide fuel cells with a dual-layer electrolyteGuo, Y.; Ran, R.; Shao, Zongping (2010)A proton-conducting solid oxide fuel cells with a dual-layer electrolyte, constructed of a highly protonic conductive BaCe0.8Y 0.2O3-d (BCY) electrolyte and chemically stable BaZr0.4Ce0.4Y0.2O3-d (BZCY4) electrolyte, was ...
Zhang, Z.; Chen, D.; Gao, Y.; Yang, G.; Dong, F.; Chen, C.; Ciucci, F.; Shao, Zongping (2014)Dual-layer membranes with enhanced CO2 tolerance and unprecedented oxygen permeability under CO2-containing sweep gas are reported. Specifically, a SrFe0.8Nb0.2O 3-d/Ba0.5Sr0.5Co0.8Fe 0.2O3-d (SFN/BSCF) dual-layer membrane ...