One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction

Handle URI:
http://hdl.handle.net/10754/627460
Title:
One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction
Authors:
Varga, Tamás; Varga, Ágnes Tímea; Ballai, Gergő; Haspel, Henrik; Kukovecz, Ákos ( 0000-0003-0716-9557 ) ; Kónya, Zoltán ( 0000-0002-9406-8596 )
Abstract:
Chlorine-free Platinum/nitrogen-doped graphene oxygen reduction reaction catalysts were synthesized by a one step method of annealing a mixture of platinum acetylacetonate and graphene oxide under ammonia atmosphere. Nanoparticles with close to the ideal particle size for oxygen reduction reaction (ORR) were formed, i.e., with diameter of 3–4 nm (500 and 600 °C) and 6 nm (700 °C). X-ray photoelectron spectroscopy confirmed the successful introduction of both pyridinic and pyrrolic type nitrogen moieties into the graphene layers, which indicates a strong interaction between the nanoparticles and the graphene layers. The electrocatalytic activity of glassy carbon electrodes (GCE) modified with the synthesized Pt/NG samples for oxygen reduction was compared to that of a platinum/carbon black catalyst modified electrode in acidic and alkaline media. Based on the measured limiting current densities and calculated electron transfer number, the highest activity was measured in acidic and alkaline media on the samples annealed at 600 and 700 °C, respectively.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
Citation:
Varga T, Varga ÁT, Ballai G, Haspel H, Kukovecz Á, et al. (2018) One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction. Carbon 133: 90–100. Available: http://dx.doi.org/10.1016/j.carbon.2018.03.020.
Publisher:
Elsevier BV
Journal:
Carbon
Issue Date:
14-Mar-2018
DOI:
10.1016/j.carbon.2018.03.020
Type:
Article
ISSN:
0008-6223
Sponsors:
Financial support from the Hungarian GINOP-2.3.2-15-2016-00013 “Intelligent materials based on functional surfaces−from syntheses to applications” project, the NKFIH (OTKA)K126065 (Á.K.) and K120115 (Z.K.) grants is acknowledged.
Additional Links:
https://www.sciencedirect.com/science/article/pii/S000862231830263X
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorVarga, Tamásen
dc.contributor.authorVarga, Ágnes Tímeaen
dc.contributor.authorBallai, Gergően
dc.contributor.authorHaspel, Henriken
dc.contributor.authorKukovecz, Ákosen
dc.contributor.authorKónya, Zoltánen
dc.date.accessioned2018-04-15T07:13:35Z-
dc.date.available2018-04-15T07:13:35Z-
dc.date.issued2018-03-14en
dc.identifier.citationVarga T, Varga ÁT, Ballai G, Haspel H, Kukovecz Á, et al. (2018) One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction. Carbon 133: 90–100. Available: http://dx.doi.org/10.1016/j.carbon.2018.03.020.en
dc.identifier.issn0008-6223en
dc.identifier.doi10.1016/j.carbon.2018.03.020en
dc.identifier.urihttp://hdl.handle.net/10754/627460-
dc.description.abstractChlorine-free Platinum/nitrogen-doped graphene oxygen reduction reaction catalysts were synthesized by a one step method of annealing a mixture of platinum acetylacetonate and graphene oxide under ammonia atmosphere. Nanoparticles with close to the ideal particle size for oxygen reduction reaction (ORR) were formed, i.e., with diameter of 3–4 nm (500 and 600 °C) and 6 nm (700 °C). X-ray photoelectron spectroscopy confirmed the successful introduction of both pyridinic and pyrrolic type nitrogen moieties into the graphene layers, which indicates a strong interaction between the nanoparticles and the graphene layers. The electrocatalytic activity of glassy carbon electrodes (GCE) modified with the synthesized Pt/NG samples for oxygen reduction was compared to that of a platinum/carbon black catalyst modified electrode in acidic and alkaline media. Based on the measured limiting current densities and calculated electron transfer number, the highest activity was measured in acidic and alkaline media on the samples annealed at 600 and 700 °C, respectively.en
dc.description.sponsorshipFinancial support from the Hungarian GINOP-2.3.2-15-2016-00013 “Intelligent materials based on functional surfaces−from syntheses to applications” project, the NKFIH (OTKA)K126065 (Á.K.) and K120115 (Z.K.) grants is acknowledged.en
dc.publisherElsevier BVen
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S000862231830263Xen
dc.titleOne step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reactionen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalCarbonen
dc.contributor.institutionDepartment of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Rerrich Bela tér 1, Hungaryen
dc.contributor.institutionMTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Rerrich Béla tér 1, Hungaryen
kaust.authorHaspel, Henriken
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