• High-Performance Ag-Doped Na0.67MnO2 Cathode: Operando XRD Study and Full-Cell Performance Analysis with Presodiated Anode 

  Kalyoncuoğlu, Burcu; Özgül, Metin; Altundağ, Sebahat; Altın, Emine; Moeez, Iqra; Chung, Kyung Yoon; Arshad, Muhammad; Aydın, Mustafa Göktan; Depci, Tolga; Altın, Serdar; Şahinbay, Sevda (American Chemical Society, 2023)

  The key challenges of Na-ion batteries are to design structurally stable electrodes and reach high-enough capacities with full-cells. In this study, we report the positive effects of Ag substitution/addition to Na0.67MnO2. ...

• Catalytic cracking of gas oil derived from heavy crude oil over biochar-based catalyst 

  Kar, Yakup; Kök, Onur Eser (National Institute of Science Communication and Policy Research, 2023)

  In this study, the main target is to obtain high grade light commercial motor fuels from the catalytic cracking of the gas oil fraction by using a modified green catalyst biochar. For this aim, initially the biochar has ...

• Catalytic pyrolysis of lignite with clay catalyst activated with spent pickling liquor 

  Kar, Yakup; Mert, Bayram Ali (Wiley, 2023)

  Spent pickling liquor (SPL) is an acidic waste with rich iron content from the stainless steel production industry. Reusability of SPL as a catalytic activity promoter in bentonite clay is crucial for the catalytic pyrolysis ...

• Novel data on genotoxic assessment of bismuth sulfide nanoflowers in common carp Cyprinus carpio 

  Ergenler, Ayşegül; Turan, Funda; Zaman, Buse Tuğba; Tezgin, Emine; Bakırdere, Sezgin; Depci, Tolga (Springer, 2023)

  The environmental impacts and risks of nanomaterials that are commonly used in different technologies are of great concern as their toxic effects on the aquatic ecosystem remain unclear. In this study, bismuth sulfide ...

• Rheological behavior of activated bentonite suspensions and estimation of flow models using least squares method 

  Kök, Onur Eser; Vapur, Hüseyin; Erdoğan, Yasin (Elsevier, 2023)

  In this study, bentonite samples were obtained from Wyoming-USA (WB), Eldivan-Çankırı (EB), Reşadiye-Tokat (RB), Niksar-Tokat (NB) and Ünye-Ordu (UB) regions. Then, these were evaluated in two main sections as raw and ...

• Experimental detection of inadequacies and improvements for a geothermal power plant using single shaft double turbine binary Organic Rankine cycle as power system 

  Baydar, Ceyhun; Koç, Yıldız; Yağlı, Hüseyin; Koç, Ali; Depci̇, Tolga; Aygün, Mustafa Kemal (Elsevier, 2023)

  The present paper dealt with the performance analyses and improvement probabilities detection for the present geothermal power plant. In addition, the present study aimed to present an analysis methodology for manufacturers ...

• Preparation and characterization of activated carbons from Lemon Pulp for oxytetracycline removal 

  Solmaz, Alper; Karta, Mesut; Depci, Tolga; Turna, Talip; Sarı, Zeynel Abidin (Springer, 2023)

  This study aims to remove oxytetracycline (OTC) that harms the ecosystem, with activated carbon (LPAC) obtained from Lemon Pulp (LP). Characterization and properties of LPAC were analyzed by Brunauer-Emmett-Teller (BET), ...

• Investigation of electrochemical performance of Na-ion batteries by hard carbon anodes produced by 

  Oktay, Zeynep Melek; Önal, Yunus; Depci, Tolga; Altundağ, Sebahat; Altın, Serdar; Yaşar, Sedat; Altın, Emine (Springer, 2023)

  Hard carbon is successfully fabricated using biomass of Prunusarmeniaca seed shells, and its structural properties are examined by different spectroscopic techniques. For using as an anode electrode in Na-ion batteries, ...

• Optimization of Electrochemical Presodiation Parameters of Na-Ion Full Cells for Stable Solid–Electrolyte Interface Formation: Hard Carbon Rods from Waste Firefighter Suits 

  Yalman, Emine; Altundağ, Sebahat; Aydın, Mustafa Göktan; Önal, Yunus; Depci, Tolga; Tekbaş, Hasan; Bulut, Fatih; Yaşar, Sedat; Altın, Serdar (Wiley, 2023)

  Utilizing the synthetic waste of firefighter costumes, rod-shaped hard carbon materials are effectively produced for the first time with over 99% purity, and their structural properties are evaluated using the appropriate ...

• Energetic and Exergetic Performance Investigation of Different Topologies for Hybrid Fuel Cell Vehicles 

  Kök, Ceyda; Mert, Suha Orçun (Wiley-Hindawi, 2023)

  The use of green energy has increased day by day. Environmentally friendly hybrid electric vehicles with low CO2 emissions have gained public attention. However, most battery electric vehicles are still having range problems, ...

• Geochemical, mineralogical and diagenetic characteristics of marine chert in the Hatay region, S-Turkey: Its origin and depositional environment 

  Yeşilot Kaplan, Meryem (Carpathian Journal of Earth and Environmental Sciences, 2023)

  Trace elements and rare earth elements (REEs) were studied to determine the formation of chert and siliceous limestones, which are predominantly observed in the Okçular formation. Cherts are divided into four types according ...

• Simulation and Modelling of A Solar-Aided Underground Energy Storage System 

  Özdamar, Hazel Sağlam; Özdamar, Seyit; Mert, Suha Orçun (Serbian Society of Heat Transfer Engineers, 2023)

  The significance of energy storage methods and related R and D studies are increasing due to the depletion of fossil fuels, rising energy prices, and growing environmental concerns. Storage of energy means elimination of ...

• Energy, exergy, and exergoeconomic analysis of a general UAV 

  Mert, Suha Orçun; Demir, Mehmet Hakan; Demir, Habibe Gürsoy; Kök, Ceyda (Inderscience Publishers, 2023)

  A 3E - energy, exergy, exergoeconomic - analysis of a rotary wing UAV that is used for general purpose has been accomplished in this study. In the study, a parametric investigation regarding the velocity, altitude and ...

• Thermoluminescence of hydroxyapatite from eggshell powders doped with Dy synthesized by the sonication chemical method: Effects of doping concentration and heating rate 

  Bulcar, Kenan; Oğlakçı Mehmet; Yücel, Ayşegül; Sezer, Selda; Madkhali, O. Ali A.; Depci, Tolga; Topaksu, Mustafa; Can, Nurdoğan (Elsevier, 2022)

  Hydroxyapatite (HAP) was selected as the host material and synthesized using a sonication chemical method. The effect of Dy3+ ion doping concentrations (0.25, 0.5, 1, 2, 3, 4, 5, 7, and 10 wt%) on the structure and ...

• Drastic microstructural modification of Bi2Ca2Co2Oyceramics by Na doping and laser texturing 

  Özçelik, Can; Depci, Tolga; Gürsul, Mehmet; Çetin, Gizem; Özçelik, Bekir; Torres, Miguel A.; Madre, Maria A.; Sotelo, Andres (Sociedad Espanola de Ceramica y Vidrio, 2022)

  Bi2Ca2-xNaxCo2Oy materials with x = 0 < x < 0.125, have been prepared either by sintering through the classical ceramic method, or textured using the laser floating zone technique. XRD results have shown that Bi2Ca2Co2Oy ...

• TiO2 Nanopartikülü İle Fonksiyonelleştirilmiş Çok Duvarlı Karbon Nanotüpün Su Bazlı Sondaj Çamuruna Etkisinin Belirlenmesi: Deneysel Çalışma 

  Asker, Nilay Hayriye; Özkan, Vildan; Özkan, Abdullah (Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020)

  Bu çalışmada, su bazlı sondaj çamuruna (Na-Bentonit bazlı) fonksiyonelleştirilmiş karbon nanotüpün etkisinin tespiti amaçlanmıştır. Bu kapsamda su bazlı sondaj çamurları hazırlanmış ve kimyasal buhar biriktirme (CVD) yöntemi ...

• Experimental Investigation of the Effects on Rheological and Filtration Properties of Water-Based Drilling Mud of Fly Ash Addition with Different Particle Size and Concentration 

  Özkan, Abdullah; Turan, Sıtkı Ekrem; Özkan, Vildan (Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020)

  Performance of the drilling fluid is a great concern in drilling operations. Recently, many studies have been carried out on how to perform drilling operations more economically and effectively. Herein this paper effect ...

• Modelling, sensitivity and exergy analysis of triple-pressure heat recovery steam generator 

  Mert, Suha Orçun; Özçelik, Zehra; Kök, Ceyda (Manas Journal of Engineering, 2020)

  Related to the increasing demand for environmental pollution and electrical energy, combined cycle power plants (CCPP) are increasingly important. So, It is necessary that increasing the performance of power plants, reducing ...

• Kızıldere Formasyonu (İskenderun-Arsuz/HATAY) Kumtaşlarında Micro-CT Yöntemiyle Mikroporozite Belirlenmesi 

  Avcu, Melda; Yeşilot Kaplan, Meryem (El-Cezerî Fen ve Mühendislik Dergisi, 2021)

  Bu çalışmanın amacı Arsuz-İskenderun (Hatay) yöresinde gözlemlenen kumtaşlarının mikroporozitesini Micro-CT ve görüntü işleme yöntemleriyle belirlemek ve makro porozite değerleriyle karşılaştırmaktır. Kızıldere formasyonu ...

• Bor İçerikli Atık Killerin Sondaj Çamurlarında Kullanımı 

  Vapur, Hüseyin; Kök, Onur Eser; Erdoğan, Yasin (Bor Dergisi, 2021)

  Bu çalışmada, Eskişehir ili Kırka ilçesinden temin edilen bor işletme tesisi proses katı atıklarının (PKA) sondaj çamurlarında kullanılabilirliği araştırılmıştır. Çalışma kapsamında Amerikan Petrol Enstitüsü (API) Spec. ...

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