Oxygen reduction on SILAR deposited iron oxide onto graphite felt electrode

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 2016 Serbia English Publisher:Elsevier BVJournal:Electrochimica Acta, volume 212, pages 254-259 (issn: 0013-4686,

Copyright policy )Funded by:MESTD | Electrochemical synthesis...

Authors: Branimir N. Grgur; Branimir Z. Jugović; Milica M. Gvozdenović;

doi: 10.1016/j.electacta.2016.07.029

handle: 21.15107/rcub_dais_15972

Oxygen reduction on SILAR deposited iron oxide onto graphite felt electrode

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Abstract

The potential characteristics of graphite felt electrodes, modified by iron oxide, for oxygen reduction are evaluated. Modification is carried out by Successive Ion Layer Adsorption and Reaction (SILAR) method, using a solution of ferric nitrate in methanol for the adsorption of ions, and a solution of sodium hypochlorite for reaction. The reaction activity of the oxygen reduction from the air, in sodium sulfate based solution varying the number of SILAR cycles, as well as the influence of pH is investigated. By comparing the activity with pure platinum, similar activity is obtained at pH = 9.2, as well as good electrode stability. Possible mechanism of the oxygen reduction on the graphite felt modified by iron oxide is discussed.

Country

Serbia

Related Organizations

University of Belgrade
Serbia
Serbian Academy of Sciences and Arts, Institute of Technical Sciences
Serbia
Serbian Academy of Sciences and Arts
Serbia

Keywords

Hypochlorite, Hematite, Mechanism, Fuel cells, Platinum

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