Nafion-stabilised platinum nanoparticles supported on titanium nitride: An efficient and durable electrocatalyst for phosphoric acid based polymer electrolyte fuel cells

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dc.contributor.authorKumar, Ravi
dc.contributor.authorPasupathi, Sivakumar
dc.contributor.authorPollet, Bruno G.
dc.contributor.authorScott, Keith
dc.date.accessioned2017-09-06T11:47:54Z
dc.date.available2017-09-06T11:47:54Z
dc.date.issued2013
dc.description.abstractNafion derived platinum nanoparticles were produced and successfully anchored on titanium nitride (TiN) support (Pt/TiN) and its suitability for phosphoric acid based polymer electrolyte membrane fuel cells is reported. Electrochemical cycling of Nafion stabilised Pt/TiN electrocatalyst exhibits good stability, durability and better electrocatalytic activity than the traditionally employed carbon supported Pt (Pt/C). Platinum supported on TiN exhibits better oxygen reduction reaction (ORR) activity as compared to carbon black (Vulcan XC 72). Nafion stabilised Pt/TiN shows a positive shift of 20 mV in half-wave potential measured from ORR polarisation curve in relation to Pt/C. Nafion stabilised Pt/TiN shows approximately two-fold increase in mass and specific activities than the Pt/C calculated from ORR data at 0.9 V. The improved durability of Pt/TiN catalyst arises from Nafion layer surrounding the Pt nanoparticles and corrosion resistant TiN support. Transition metal nitride based electrocatalysts are more active for cathode due to synergistic effect, which is observed in oxygen reduction reaction.en_US
dc.description.accreditationWeb of Science
dc.identifier.citationKumar, R. et al. (2013). Nafion-stabilised platinum nanoparticles supported on titanium nitride: An efficient and durable electrocatalyst for phosphoric acid based polymer electrolyte fuel cells. Electrochimica Acta, 109: 365-369en_US
dc.identifier.issn0013-4686
dc.identifier.urihttp://dx.doi.org/10.1016/j.electacta.2013.07.140
dc.identifier.urihttp://hdl.handle.net/10566/3176
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherElsevieren_US
dc.rightsThis is the author-version of the article published online at: http://dx.doi.org/10.1016/j.electacta.2013.07.140
dc.status.ispeerreviewedTRUE
dc.subjectTitanium nitrideen_US
dc.subjectFuel cellsen_US
dc.subjectNafion-stabilised Pten_US
dc.subjectDurabilityen_US
dc.titleNafion-stabilised platinum nanoparticles supported on titanium nitride: An efficient and durable electrocatalyst for phosphoric acid based polymer electrolyte fuel cellsen_US
dc.typeArticleen_US

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