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Investigation of electrocatalytic activity on a N-doped reduced graphene oxide surface for the oxygen reduction reaction in an alkaline medium
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2018 (Engelska)Ingår i: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 43, nr 27, s. 12129-12139Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Today the search for new energy resources is a crucial topic for materials science. The development of new effective catalysts for the oxygen reduction reaction can significantly improve the performance of fuel cells as well as electrocatalytic hydrogen production. This study presents the scalable synthesis of nitrogen-doped graphene oxide for the oxygen reduction reaction. The combination of an ab initio theoretical investigation of the oxygen reduction reaction (ORR) mechanism and detailed electrochemical characterization allowed the identification of electrocatalytically active nitrogen functionalities. The dominant effect on electrocatalytic activity is the presence of graphitic and pyridinic nitrogen and also N-oxide functionalities. The overpotential of ORR for nitrogen-doped graphene oxide prepared by microwave-assisted synthesis outperformed the metal-doped graphene materials.

Ort, förlag, år, upplaga, sidor
2018. Vol. 43, nr 27, s. 12129-12139
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-232906DOI: 10.1016/j.ijhydene.2018.05.012ISI: 000438325200021Scopus ID: 2-s2.0-85047721589OAI: oai:DiVA.org:kth-232906DiVA, id: diva2:1237375
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QC 20180808

Tillgänglig från: 2018-08-08 Skapad: 2018-08-08 Senast uppdaterad: 2018-08-08Bibliografiskt granskad

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Pašti, Igor

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Pašti, IgorSkorodumova, Natalia, V
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International journal of hydrogen energy
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