Production of Sustainable Low-Layer Graphene by Green Synthesis at Room Conditions for Platinum-Based Direct Methanol Fuel Cell


Erduran V., Bayat R., Işık İ., Bayazıt T., Şen F.

JACS AU, vol.1, no.CC BY-NC-ND 4.0, pp.1-5, 2023 (ESCI)

  • Publication Type: Article / Article
  • Volume: 1 Issue: CC BY-NC-ND 4.0
  • Publication Date: 2023
  • Doi Number: 10.1021/acsengineeringau.3c00040
  • Journal Name: JACS AU
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Directory of Open Access Journals
  • Page Numbers: pp.1-5
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

In this study, a cost-effectiveand scalablemethodfor the productionof low-layergraphene(LLG)using sodiumpercarbonate(SPC)as a greendelaminationagentand itsapplicationin fuel cells is proposed.The obtainedgrapheneshoweda decreasein signal heightin XRD analysis,indicatingthinnerlayers.Ramananalysisconfirmedthe presenceof 7−8layers of graphene.Field-emissionscanningelectronmicroscopyanalysisrevealeda uniformcrystalstructure,makingit suitableforvariousapplications.Directmethanolfuel cells (DMFCs)arewidelyrecognizedas efficientand environmentallyfriendlydevicesfor convertingchemicalenergyto electricalenergy.The utilizationof graphene-supportedplatinum(Pt) nanoparticles(NPs)ascatalystsin DMFCsenhancestheir performance.In this study, Pt-graphenecatalystswere synthesizedby the chemicalreductionmethodwith grapheneobtainedby using SPC. CharacterizationthroughXRD and SEM analysesconfirmedthe homogeneousdistributionof NPs on the carbonsupport.As a result of methanoloxidationstudies,57.73 and 21.45 mA/cm2values were obtainedby using Pt@LLGand Pt catalysts,respectively.As a result of long-term stabilityand durabilitytests, it has been found that the Pt@LLGcatalystcan be used effectivelyin metal oxidationexperiments.

KEYWORDS:low layergraphene,carbon,greensynthesis,directalcoholfuel cells,electrocatalysts,platinum