A5009017155- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Electrochemical sensors and biosensors
- Graphene research and applications
- Advanced Battery Technologies Research
- Advancements in Solid Oxide Fuel Cells
- Advanced Photocatalysis Techniques
- Membrane-based Ion Separation Techniques
- Graphene and Nanomaterials Applications
- Molecular Junctions and Nanostructures
- Organic Electronics and Photovoltaics
- Polymer Nanocomposite Synthesis and Irradiation
- Polymer Surface Interaction Studies
- Analytical Chemistry and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Copper-based nanomaterials and applications
- Nanofabrication and Lithography Techniques
- Catalytic Processes in Materials Science
- Advanced Polymer Synthesis and Characterization
- Electrospun Nanofibers in Biomedical Applications
Sabancı Üniversitesi
2015-2024
Paul Scherrer Institute
2004-2010
Middle East Technical University
1999-2004
University of Florida
2003
Abstract The cost of polymer electrolyte fuel cell (PEFC) components is crucial to the commercial viability technology. Proton exchange membranes fabricated via method radiation grafting offer a cost‐competitive option, because starting materials are inexpensive commodity products and preparation procedure based on established industrial processes. Radiation grafted have been used with success in membrane separation This review focuses application cells, particular identification relevant...
Abstract Electrochemical polymerization in the strong Lewis acid, boron trifluoride ethylether (BFEE), has been used to prepare electrochromic polythiophene (PTh) and its derivatives: poly(3‐methylthiophene) (PMeTh), poly(3‐bromothiophene) (PBrTh), poly(3,4‐dibromothiophene) (PDBrTh). The processes properties of resultant films are compared, where possible, those carried out traditional organic electrochemical solvents. these high oxidation potential thiophene monomers BFEE yielded...
Here we report on technology developments implemented into the Graphene Flagship European project for integration of graphene and graphene-related materials (GRMs) energy application devices. Many technologies investigated so far aim at producing composite associating or GRMs with either metal semiconducting nanocrystals other carbon nanostructures (e.g., CNT, graphite). These composites can be used favourably as hydrogen storage solar cell absorbers. They also provide better performing...
In this study, new electrocatalysts for PEM fuel cells, based on Pt nanoparticles supported hybrid carbon support networks comprising reduced graphene oxide (rGO) and black (CB) at varying ratios, were designed prepared by means of a rapid efficient microwave-assisted synthesis method. Resultant catalysts characterized ex-situ their structure, morphology, electrocatalytic activity. addition, membrane-electrode assemblies (MEAs) fabricated using resultant evaluated in-situ cell performance...
A hybrid nanostructure with partially reduced graphene oxide (rGO) and carbon nanofibers (CNFs) was fabricated used as supercapacitor electrodes. straightforward, environmentally friendly, low-cost microwave-assisted reduction process developed for the synthesis of rGO/CNF structures. The devices showed a specific capacitance 95.3 F g−1 superior long-term cycling stability. retention more than 97% after 11 000 galvanostatic charge discharge cycles obtained. These other results reported in...
A new and straightforward approach for the synthesis of ultrasmall monodisperse Pt nanoparticles (NPs) their controlled assembly on graphene based supports including reduced oxide (rGO), commercial carbon black (VC) rGO-VC hybrid were reported. These supported NPs utilized as electrocatalysts polymer electrolyte membrane fuel cells (PEMFC). Surfactant-assisted reduction platinum(II) acetylacetonate in hot organic solution yielded 1.2 nm NPs. decorated rGO, VC by using a simple liquid-phase...
Here, we report a novel electrode structure with graphene and graphene–carbon black hybrids by electrospraying for polymer electrolyte membrane fuel cells. After syntheses of platinum (Pt)/partially reduced oxide (rGO) Pt/r-GO/carbon (CB) hybrid electrocatalysts, suspensions synthesized electrocatalyst inks were prepared Nafion® ionomer poly(vinylidene fluoride-co-hexafluoropropylene) electrosprayed over carbon paper to form electrodes. Electrosprayed catalyst layer exhibited uniform small...
Two copper‐based Cu 3 (btc) 2 and Cu(Im) metal–organic frameworks are synthesized annealed to form nanoporous Cu/Cu O@C Cu@N‐C nanoparticles for utilization as catalysts in the reduction reaction of aromatic nitro compounds amines. All MOF MOF‐derived characterized using XRD, Raman spectroscopy, TGA, SEM‐EDX, XPS methods. Also, pore‐size distribution surface area by BJH BET After characterization, catalytically tested reactions various chemically monitoring with a UV/Vis spectrometer. Both...
Poly(methyl methacrylate) with a thiophene end group having narrow polydispersity was prepared by the Atom Transfer Radical Polymerization (ATRP) technique. Subsequently, electrically conducting block copolymers of thiophene-capped poly(methyl pyrrole were synthesized using p-toluene sulfonic acid and sodium dodecyl sulfate as supporting electrolytes via constant potential electrolysis. Characterization performed CV, FTIR, SEM, TGA, DSC analyses. Electrical conductivities evaluated...
In this work a simple novel method for preparing micro- and nanoscale patterns of polymer chains grafted onto flexible substrates is described. A combination the two techniques radiation grafting "grafting-from" has been made. This makes it possible to prepare structures having or lateral dimensions that are determined by electron beam X-ray irradiation used. The height features can be controlled dose such reaction conditions as time, temperature, monomer concentration. Our first results...