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Direct glycerol fuel cell with polytetrafluoroethylene (PTFE) thin film separator

TitleDirect glycerol fuel cell with polytetrafluoroethylene (PTFE) thin film separator
Publication TypeJournal Article
Year of Publication2017
AuthorsBenipal, N, Qi, J, Gentile, JC, Li, WZ
JournalRenewable Energy
Volume105
Pagination647-655
Date Published05
Type of ArticleArticle
ISBN Number0960-1481
Accession NumberWOS:000393726200059
Keywordsalcohol oxidation, alkaline electrolyte, Anion exchange membrane, Anion-exchange membrane, anode, Biomass renewables, carbon-nanotubes, catalysts, Direct glycerol fuel cell, electrocatalytic oxidation, electrolyte-membrane, ethanol, fuels, nafion/ptfe composite membranes, oxidation reaction, oxygen reduction, Polytetrafluoroethylene (PTFE), Porous separator, Technology - Other Topics, Thin films
Abstract

s performance. A simple aqueous phase reduction method was used to prepare carbon nanotube supported PdAg nanoparticles (PdAg/CNT) with an average particle size of 2.9 nm. A DGFC using a PTFE thin film without any further modification with PdAg/CNT anode catalyst exhibits a peak power density of 214.7 mW cm(-2) at 80 degrees C, about 22.6% lower than a DGFC using a state-of-the-art AEM. We report a 5.8% decrease and 11.1% decrease in cell voltage for a PTFE thin film and AEM; similarly, the cell voltage degradation rate decreases from 1.2 to 0.8 mV h(-1) for PTFE thin film, while for AEM, it decreases from 9.6 to 3.0 mV h(-1) over an 80 h durability test period. Transmission electron microscopy results indicate that the average particle size of PdAgICNT increases from 2.9 to 3.7 nm after 80 h discharge; this suggests that PdAg particle growth may be the main reason for the performance drop. (C) 2017 Elsevier Ltd. All rights reserved.

DOI10.1016/j.renene.2016.12.028
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Short TitleRenew. Energy
Alternate JournalRenew. Energy