title: Graphitic Carbon Nitride Supported Catalysts for Polymer Electrolyte Fuel Cells.
abstract: Graphitic carbon nitrides are investigated for developing highly durable Pt electrocatalyst supports for polymer electrolyte fuel cells (PEFCs). Three different graphitic carbon nitride materials were synthesized with the aim to address the effect of crystallinity, porosity, and composition on the catalyst support properties: polymeric carbon nitride (gCNM), poly(triazine) imide carbon nitride (PTI/Li+Cl-), and boron-doped graphitic carbon nitride (B-gCNM). Following accelerated corrosion testing, all graphitic carbon nitride materials are found to be more electrochemically stable compared to conventional carbon black (Vulcan XC-72R) with B-gCNM support showing the best stability. For the supported catalysts, Pt/PTI-Li+Cl-catalyst exhibits better durability with only 19% electrochemical surface area (ECSA) loss versus 36% for Pt/Vulcan after 2000 scans. Superior methanol oxidation activity is observed for all graphitic carbon nitride supported Pt catalysts on the basis of the catalyst ECSA.
authors.affiliation: Electrochemical Innovation Lab, University College London , London WC1E 7JE, United Kingdon.
authors.forename: Noramalina
authors.initials: N
authors.lastname: Mansor
authors.affiliation: Department of Chemistry, University College London , London WC1H 0AJ, United Kingdom.
authors.forename: A Belen
authors.initials: AB
authors.lastname: Jorge
authors.affiliation: Department of Chemistry, University College London , London WC1H 0AJ, United Kingdom.
authors.forename: Furio
authors.initials: F
authors.lastname: Corà
authors.affiliation: Electrochemical Innovation Lab, University College London , London WC1E 7JE, United Kingdon.
authors.forename: Christopher
authors.initials: C
authors.lastname: Gibbs
authors.affiliation: Electrochemical Innovation Lab, University College London , London WC1E 7JE, United Kingdon.
authors.forename: Rhodri
authors.initials: R
authors.lastname: Jervis
authors.affiliation: Department of Chemistry, University College London , London WC1H 0AJ, United Kingdom.
authors.forename: Paul F
authors.initials: PF
authors.lastname: McMillan
authors.affiliation: Department of Chemistry, University College London , London WC1H 0AJ, United Kingdom.
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Wang
authors.affiliation: Electrochemical Innovation Lab, University College London , London WC1E 7JE, United Kingdon.
authors.forename: Daniel J L
authors.initials: DJ
authors.lastname: Brett
references.citation: J Am Chem Soc. 2011 Dec 21;133(50):20116-9
references.pmid: 22082332
references.citation: Chemistry. 2008;14(27):8177-82
references.pmid: 18663712
references.citation: Small. 2006 Feb;2(2):182-93
references.pmid: 17193018
references.citation: Anal Chem. 2010 Aug 1;82(15):6321-8
references.pmid: 20590161
references.citation: Langmuir. 2008 Apr 1;24(7):3566-75
references.pmid: 18294008
references.citation: J Phys Chem B. 2005 Aug 4;109(30):14433-40
references.pmid: 16852816
references.citation: J Am Chem Soc. 2010 Nov 24;132(46):16299-301
references.pmid: 21043489
references.citation: Angew Chem Int Ed Engl. 2010 Apr 26;49(19):3356-9
references.pmid: 20340148
references.citation: Chemistry. 2011 Mar 7;17(11):3213-21
references.pmid: 21312298
references.citation: Science. 2009 Nov 27;326(5957):1250-2
references.pmid: 19965472
references.citation: Nat Mater. 2009 Jan;8(1):76-80
references.pmid: 18997776
references.citation: Science. 2009 Apr 3;324(5923):74-7
references.pmid: 19342584
references.citation: Angew Chem Int Ed Engl. 2003 Sep 22;42(36):4352-6
references.pmid: 14502709
references.citation: Phys Chem Chem Phys. 2008 Jan 7;10(1):159-67
references.pmid: 18075695
references.citation: Angew Chem Int Ed Engl. 2012 Jan 2;51(1):68-89
references.pmid: 22109976
references.citation: Phys Chem Chem Phys. 2010 Aug 28;12(32):9461-8
references.pmid: 20571681