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Synthesis of multiwall carbon nanotubes with a high loading of Pt by a microwave-assisted impregnation method for use in the oxygen reduction reaction

Title
Synthesis of multiwall carbon nanotubes with a high loading of Pt by a microwave-assisted impregnation method for use in the oxygen reduction reaction
Authors
Rahsepar, M[Rahsepar, Mansour]Pakshir, M[Pakshir, Mahmoud]Kim, H[Kim, Hasuck]
DGIST Authors
Kim, H[Kim, Hasuck]
Issue Date
2013-10-01
Citation
Electrochimica Acta, 108, 769-775
Type
Article
Article Type
Article
Keywords
Carbon NanotubeCarbon NanotubesCatalyst Nano ParticlesElectrocatalystElectrocatalystsElectrocatalytic ActivityElectrocatalytic PerformanceElectrolytic ReductionFuel CellFuel CellsImpregnationImpregnation MethodsImproved Impregnation MethodMultiwalled Carbon Nanotubes (MWCN)Oxygen Reduction ReactionParticle Size AnalysisPhysico-Chemical CharacterizationPlatinumRotating Disk ElectrodesRotating DisksTransmission Electron MicroscopyX Ray Diffraction
ISSN
0013-4686
Abstract
A multiwall carbon nanotube (MWCNT) catalyst with a high loading (40 wt.%) of platinum was syn-thesized by a microwave-assisted improved impregnation method. The catalyst nanoparticles werecharacterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spec-troscopy. Results of physicochemical characterizations reveal that the catalyst is uniformly loaded onthe external surface of the MWCNTs with a relatively narrow particle size distribution (an average of3.9 nm). The electrocatalytic performance of the catalyst toward oxygen reduction was studied by lin-ear sweep voltammetry measurements of a catalyst-coated rotating disk electrode at different rotationrates. The results show that the prepared catalyst has good electrocatalytic activity for oxygen reductionfollowing a four-electron path to produce water molecules. © 2013 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2419
DOI
10.1016/j.electacta.2013.07.028
Publisher
Elsevier Ltd
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles


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