A unique 3D nitrogen-doped carbon composite as high-performance oxygen reduction catalyst

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dc.contributor.authorKarunagaran, R.
dc.contributor.authorTung, T.
dc.contributor.authorShearer, C.
dc.contributor.authorTran, D.
dc.contributor.authorCoghlan, C.
dc.contributor.authorDoonan, C.
dc.contributor.authorLosic, D.
dc.date.issued2017
dc.description.abstractThe synthesis and properties of an oxygen reduction catalyst based on a unique 3-dimensional (3D) nitrogen doped (N-doped) carbon composite are described. The composite material is synthesised via a two-step hydrothermal and pyrolysis method using bio-source low-cost materials of galactose and melamine. Firstly, the use of iron salts and galactose to hydrothermally produceiron oxide (Fe₂O₃) magnetic nanoparticle clusters embedded carbon spheres. Secondly, magnetic nanoparticles diffused out of the carbon sphere when pyrolysed in the presence of melamine as nitrogen precursor. Interestingly, many of these nanoparticles, as catalyst-grown carbon nanotubes (CNTs), resulted in the formation of N-doped CNTs and N-doped carbon spheres under the decomposition of carbon and a nitrogen environment. The composite material consists of integrated N-doped carbon microspheres and CNTs show high ORR activity through a predominantly four-electron pathway.
dc.description.statementofresponsibilityRamesh Karunagaran, Tran Thanh Tung, Cameron Shearer, Diana Tran, Campbell Coghlan, Christian Doonan, and Dusan Losic
dc.identifier.citationMaterials, 2017; 10(8):921-1-921-10
dc.identifier.doi10.3390/ma10080921
dc.identifier.issn1996-1944
dc.identifier.issn1996-1944
dc.identifier.orcidKarunagaran, R. [0000-0001-7939-4775]
dc.identifier.orcidTung, T. [0000-0002-1535-5109]
dc.identifier.orcidShearer, C. [0000-0002-8192-3696]
dc.identifier.orcidTran, D. [0000-0002-4023-3373]
dc.identifier.orcidCoghlan, C. [0000-0003-1625-3216]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttp://hdl.handle.net/2440/109176
dc.language.isoen
dc.publisherMDPI AG
dc.relation.granthttp://purl.org/au-research/grants/arc/IH150100003
dc.rights© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.3390/ma10080921
dc.subjectN-doped carbon spheres; N-doped carbon nanotubes; ORR; hybrid; catalysts
dc.titleA unique 3D nitrogen-doped carbon composite as high-performance oxygen reduction catalyst
dc.typeJournal article
pubs.publication-statusPublished

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