Production of Sustainable Low-Layer Graphene by Green Synthesisat Room Conditions for Platinum-Based Direct Methanol Fuel Cell
ACS Engineering Au, 2023 - ACS Publications, 2023 (ESCI)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2023
- Doi Numarası: 10.1021/acsengineeringau.3c00040
- Dergi Adı: ACS Engineering Au, 2023 - ACS Publications
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
- Recep Tayyip Erdoğan Üniversitesi Adresli: Evet
Özet
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