Vildan Erduran, Ramazan Bayat, Iskender Isik, Tugba Bayazit and Fatih Şen*,
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Production of Sustainable Low-Layer Graphene by Green Synthesis at Room Conditions for Platinum-Based Direct Methanol Fuel Cell
In this study, a cost-effective and scalable method for the production of low-layer graphene (LLG) using sodium percarbonate (SPC) as a green delamination agent and its application in fuel cells is proposed. The obtained graphene showed a decrease in signal height in XRD analysis, indicating thinner layers. Raman analysis confirmed the presence of 7–8 layers of graphene. Field-emission scanning electron microscopy analysis revealed a uniform crystal structure, making it suitable for various applications. Direct methanol fuel cells (DMFCs) are widely recognized as efficient and environmentally friendly devices for converting chemical energy to electrical energy. The utilization of graphene-supported platinum (Pt) nanoparticles (NPs) as catalysts in DMFCs enhances their performance. In this study, Pt-graphene catalysts were synthesized by the chemical reduction method with graphene obtained by using SPC. Characterization through XRD and SEM analyses confirmed the homogeneous distribution of NPs on the carbon support. As a result of methanol oxidation studies, 57.73 and 21.45 mA/cm2 values were obtained by using Pt@LLG and Pt catalysts, respectively. As a result of long-term stability and durability tests, it has been found that the Pt@LLG catalyst can be used effectively in metal oxidation experiments.
期刊介绍：
）ACS Engineering Au is an open access journal that reports significant advances in chemical engineering applied chemistry and energy covering fundamentals processes and products. The journal's broad scope includes experimental theoretical mathematical computational chemical and physical research from academic and industrial settings. Short letters comprehensive articles reviews and perspectives are welcome on topics that include:Fundamental research in such areas as thermodynamics transport phenomena (flow mixing mass & heat transfer) chemical reaction kinetics and engineering catalysis separations interfacial phenomena and materialsProcess design development and intensification (e.g. process technologies for chemicals and materials synthesis and design methods process intensification multiphase reactors scale-up systems analysis process control data correlation schemes modeling machine learning Artificial Intelligence)Product research and development involving chemical and engineering aspects (e.g. catalysts plastics elastomers fibers adhesives coatings paper membranes lubricants ceramics aerosols fluidic devices intensified process equipment)Energy and fuels (e.g. pre-treatment processing and utilization of renewable energy resources; processing and utilization of fuels; properties and structure or molecular composition of both raw fuels and refined products; fuel cells hydrogen batteries; photochemical fuel and energy production; decarbonization; electrification; microwave; cavitation)Measurement techniques computational models and data on thermo-physical thermodynamic and transport properties of materials and phase equilibrium behaviorNew methods models and tools (e.g. real-time data analytics multi-scale models physics informed machine learning models machine learning enhanced physics-based models soft sensors high-performance computing)
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