Elif Daş

ORCID: 0000-0002-3149-6016
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About
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Research Areas
  • Fuel Cells and Related Materials
  • Electrocatalysts for Energy Conversion
  • Semiconductor materials and interfaces
  • Conducting polymers and applications
  • Supercapacitor Materials and Fabrication
  • Catalytic Processes in Materials Science
  • Graphene research and applications
  • Advanced battery technologies research
  • Silicon Nanostructures and Photoluminescence
  • Silicon and Solar Cell Technologies
  • Electrochemical Analysis and Applications
  • Hybrid Renewable Energy Systems
  • Semiconductor materials and devices
  • Aerogels and thermal insulation
  • Hydrogen Storage and Materials
  • Advanced Sensor and Energy Harvesting Materials
  • Advancements in Semiconductor Devices and Circuit Design
  • Graphene and Nanomaterials Applications
  • Gas Sensing Nanomaterials and Sensors
  • Nanowire Synthesis and Applications
  • Ga2O3 and related materials
  • Organic Electronics and Photovoltaics
  • Catalysts for Methane Reforming
  • Electrochemical sensors and biosensors
  • Spacecraft and Cryogenic Technologies

Atatürk University
2016-2025

10.1007/s10854-025-14242-y article EN cc-by Journal of Materials Science Materials in Electronics 2025-01-01

Fosil yakıtların büyük ölçüde tükenmesi, atmosferdeki karbondioksit seviyesinin artması ve buna bağlı olarak gelişen çevresel tehlikeler insanlık için giderek artan bir endişe kaynağıdır. Bu nedenle son yıllarda hidrojen ekosisteminin kurulmasına yönelik önemli çabalar sarf edilmektedir. Hidrojen, sıfır veya sıfıra yakın emisyona yol açabilen, yüksek verimle enerji dönüşümü sağlayabilen taşıyıcısıdır. Öte yandan, ulaşım, ısınma üretimi gibi farklı alanlarda çok yönlü kullanılabilme...

10.17780/ksujes.1564900 article TR Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 2025-03-03

Supercapacitors are the electrochemical capacitors with high energy density. In this study, first, carbon aerogels (CAs) having different structural properties (surface areas and pore diameters) were synthesized. Their polypyrrole (PPy) composites on these CAs synthesized via oxidative polymerization. The change in capacitive depending both CA PPy addition was determined. materials characterized by Fourier Transform Infrared Spectrocope (FTIR), X-ray diffraction (XRD), nitrogen...

10.1002/er.5841 article EN International Journal of Energy Research 2020-09-04

Pt and Pt-M (M = Ni, Fe, Cu) nanoparticles supported on graphene nanoplatelets (GNPs) were synthesized by simultaneous supercritical carbon dioxide deposition method. Morphology analysis TEM revealed the formation of metal 2–3 nm size uniformly distributed over GNPs, while XPS was used to determine their oxidation states. Four materials tested as electrocatalysts for ORR OER in unitized regenerative fuel cells rechargeable metal-air batteries. PtFe/GNPs exhibited favorable kinetics terms...

10.1016/j.jallcom.2022.164156 article EN cc-by Journal of Alloys and Compounds 2022-02-16

A set of platinum (Pt) and earth-abundant transition metals (M = Ni, Fe, Cu) on graphene nanoplatelets (sqPtM/GNPs) was synthesised via sequential deposition to establish parallels between the synthesis method materials' electrochemical properties. sqPtM/GNPs were assessed as bifunctional electrocatalysts for oxygen evolution (OER) reduction (ORR) reactions application in unitised regenerative fuel cells metal-air batteries. sqPtFe/GNPs showed highest catalytic performance with a low...

10.3390/ma16093388 article EN Materials 2023-04-26

Abstract Carbon‐based support materials are mostly used in proton exchange membrane fuel cells (PEMFCs); however, they often suffer from degradation under the operating conditions. In this context, conducting polymers and their composites stand out as a good alternative material thanks to chemical stability, high electrical conductivity, higher oxidation‐resistant properties, which fulfills requirements for possible utilization electrocatalyst PEMFCs. This study reports preparation of...

10.1002/ente.201600779 article EN Energy Technology 2017-02-07

Abstract The progress of modern life is largely based on technological developments. This possible with the development materials that increase functionality electronic devices. In this regard, present work reports synthesis MgO and MgO-graphene (MgO-G) composite their device applications. first step, MgO-G nanomaterials were carried out then multiple approaches used to characterize structural, optical, morphological properties as an interfacial layer. next MgO/n-Si MgO-G/n-Si structures...

10.1088/1402-4896/ace249 article EN Physica Scripta 2023-06-28

Abstract Two kinds of reduced graphene oxide (rGO) were synthesized with the reducing agents either dimethylformamide (DMF) or hydrazine hydrate (HYD). The decoration platinum nanoparticles (Pt NPs) over these materials was provided by microwave irradiation (MWI) method. Detailed physical and electrochemical measurements carried out. Based on results both catalysts, it is not surprising achievement higher active surface area (ECSA), oxygen reduction reaction (ORR) activity, electron transfer...

10.1002/elan.202060588 article EN Electroanalysis 2021-04-08

10.5281/zenodo.14344182 article EN DergiPark (Istanbul University) 2024-08-05
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