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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
Univ Chem & Technol, Dept Inorgan Technol, Tech 5, Prague 16628 6, Czech Republic.
Univ Belgrade, Fac Phys Chem, Studentski Trg 12-16, Belgrade 11158, Serbia.
Univ Chem & Technol, Dept Inorgan Technol, Tech 5, Prague 16628 6, Czech Republic.
Univ Chem & Technol, Dept Inorgan Chem, Tech 5, Prague 16628 6, Czech Republic.
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2018 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 43, no 27, p. 12129-12139Article in journal (Refereed) 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. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2018. Vol. 43, no 27, p. 12129-12139
Keywords [en]
Nitrogen-doped graphene, Oxygen reduction reaction, ab initio calculations, Microwave synthesis
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-386224DOI: 10.1016/j.ijhydene.2018.05.012ISI: 000438325200021OAI: oai:DiVA.org:uu-386224DiVA, id: diva2:1327225
Funder
Swedish Research Council, 2014-5993Available from: 2019-06-19 Created: 2019-06-19 Last updated: 2019-06-19Bibliographically approved

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Skorodumova, Natalia V.

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