Effect of Furfuryl Alcohol on Metal Organic Framework-based Fe/N/C Electrocatalysts for Polymer Electrolyte Membrane Fuel Cells

Abstract : Fe/N/C electrocatalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells (PEMFCs) have been synthesized from iron acetate (FeIIAc), 1,10-phenanthroline (phen), furfuryl alcohol (FA) and a thermally-decomposable metal-organic framework (MOF). The catalyst precursors have been prepared according to two main synthesis schemes. In the first one, a nitrogen-doped carbon was first synthesized from the MOF impregnated with FA, and this carbon was subsequently used as a microporous support for FeIIAc and phen. In the second approach, the FA-impregnated MOF was used as a support for FeIIAc and phen. The catalyst precursors prepared from these two approaches were subjected to a first pyrolysis in Ar and to a second pyrolysis in NH3. The effect of the pyrolysis temperature in Ar and heating rate were investigated. The as-prepared electrocatalysts were characterized by transmission electron microscopy, N2 sorption analysis, as well as Mössbauer and X-ray absorption spectroscopies for the optimized catalysts. The electrochemical properties towards the ORR were investigated by rotating-disk electrode voltammetry and H2-O2 PEMFC tests.
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Submitted on : Monday, January 20, 2014 - 2:42:44 PM
Last modification on : Tuesday, May 28, 2019 - 2:06:10 PM

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Frederic Jaouen, Adina Morozan, Moulay Tahar Sougrati, Vincent Goellner, Deborah Jones, et al.. Effect of Furfuryl Alcohol on Metal Organic Framework-based Fe/N/C Electrocatalysts for Polymer Electrolyte Membrane Fuel Cells. Electrochimica Acta, Elsevier, 2014, 119, pp.192-205. ⟨10.1016/j.electacta.2013.12.022⟩. ⟨hal-00933406⟩

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