Browsing by Author "Timurkutluk, Bora"
Now showing items 1-20 of 28
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Anode-supported solid oxide fuel cells with ion conductor infiltration
Timurkutluk, Bora; Timurkutluk, Cigdem; Mat, Mahmut D.; Kaplan, Yuksel (WILEY-BLACKWELL, 2011)Nano ion conductor infiltration to anode andcathode side of solid oxide fuel cell (SOFC) significantly improves the performance of an SOFC. The effects of processing parameters such as molar concentration, sintering ... -
Design and fabrication of stair-step-type electrolyte structure for solid oxide fuel cells
Palaci, Yuksel; Timurkutluk, Bora (WILEY-BLACKWELL, 2013)The design and the fabrication of novel stair-step electrolyte based on yttria stabilized zirconia are presented. The novel electrolyte has gradually reduced oxide ion transport paths achieved by the stair-step design. The ... -
Design and optimization of novel flow fields for pem fuel cells
Chowdhury, Mohammad Ziauddin (Niğde Ömer Halisdemir Üniversitesi / Fen Bilimleri Enstitüsü, 2017)Bu çalışmada, deneysel ve sayısal yaklaşım ile akış alanı optimizasyonu incelenmiştir. Yenilikçi yakınsak-ıraksak akış alanı tasarımı, bu çalışmanın özgün yanını ortaya koymaktadır. Deneysel sonuçlara göre belirli yakınsak ... -
Development of anodes for direct oxidation of methane fuel in solid oxide fuel cells
Akdeniz, Yelda; Timurkutluk, Bora; Timurkutluk, Cigdem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)In addition to pure hydrogen, solid oxide fuel cells (SOFCs) can utilize hydrocarbons as a fuel. However, conventional Ni-based anodes exhibit an excellent catalytic activity towards the hydrocarbon cracking reaction and ... -
Development of high-performance anode supported solid oxide fuel cell
Timurkutluk, Bora; Timurkutluk, Cigdem; Mat, Mahmut D.; Kaplan, Yuksel (WILEY-BLACKWELL, 2012)A high performance five-layered anode supported solid oxide fuel cell (SOFC) is developed by low-cost tape casting, co-sintering, and screen printing techniques. The cell is composed of NiO/scandium stabilized zirconia ... -
Development Of Redox Tolerant Solid Oxide Fuel Cells
Timurkutluk, Bora (Niğde Üniversitesi, 2013)Anode supported solid oxide fuel cells (SOFCs) having various properties are developed and the effects of fabrication parameters on the cell performance and redox behavior of the cell are investigated experimentally and ... -
Doğrudan metan yakıtlı katı oksit yakıt pili anot geliştirilmesi
Çiflik, Eda (Niğde Üniversitesi / Fen Bilimleri Enstitüsü, 2015)Katı oksit yakıt pili (KOYP), saf hidrojenin yanı sıra hidrokarbonları da yakıt olarak kullanabilmektedir. Fakat geleneksel nikel temelli anotlar hidrokarbonlara karşı çok iyi katalitik aktivite sergilemektedir ve bu ... -
Effect of Nano Ion Conductor Infiltration on the Performance of Anode Supported Solid Oxide Fuel Cells
Timurkutluk, Cigdem; Timurkutluk, Bora; Mat, Mahmut D.; Kaplan, Yuksel; Ibrahimoglu, Beycan; Pamuk, Ibrahim (ELECTROCHEMICAL SOC INC, 2009)A high performance anode supported solid oxide fuel cell (SOFC) is developed by low-cost tape casting, co-sintering and nano-ion conductor infiltration techniques. A mixture of gadolinium and cerium nitrate solution is ... -
Effects of anode fabrication parameters on the performance and redox behavior of solid oxide fuel cells
Timurkutluk, Bora; Mat, Mahmut D. (ELSEVIER SCIENCE BV, 2014)Anode supported solid oxide fuel cells (SOFCs) having various anode support porosities and electrolyte thicknesses are developed and their effects on the cell performance and redox behavior of the cell are investigated ... -
Effects of ceramic based pastes on electrochemical performance of solid oxide fuel cells
Mat, Abdullah; Timurkutluk, Bora; Timurkutluk, Cigdem; Kaplan, Yuksel (ELSEVIER SCI LTD, 2014)Various commercially available anode and cathode materials are investigated as the anode and cathode contact paste, respectively, for solid oxide fuel cells. In order to obtain a printable paste, chosen materials are mixed ... -
Effects of electrolyte pattern on mechanical and electrochemical properties of solid oxide fuel cells
Timurkutluk, Bora; Celik, Selahattin; Toros, Serkan; Timurkutluk, Cigdem; Mat, Mahmut D.; Kaplan, Yuksel (ELSEVIER SCI LTD, 2012)In order to enhance the electrochemical performance and reduce the operation temperature of a conventional electrolyte supported solid oxide fuel cell (SOFC), a three layered electrolyte with various geometry is designed ... -
Effects of fabrication parameters on the performance of solid oxide electrolyzer cell
Korkmaz, Hatice; Timurkutluk, Bora; Timurkutluk, Cigdem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)The microstructure has a great impact on the performance of solid oxide fuel/electrolyzer cells while the cell fabrication parameters mainly determine the microstructure of the cell components. In this study, a number of ... -
Effects of operation temperature and reactant gas humidity levels on performance of PEM fuel cells
Ozen, Dilek Nur; Timurkutluk, Bora; Altinisik, Kemal (PERGAMON-ELSEVIER SCIENCE LTD, 2016)In this study, the effects of operation conditions on the performance of a polymer electrolyte membrane fuel cell are investigated and the results are presented together with a comprehensive literature review on the related ... -
Electrochemical behaviour and sulfur tolerance of VxMo(1-x)Oy as solid oxide fuel cell anode
Beyribey, Berceste; Timurkutluk, Bora; Ertugrul, Tugrul Y.; Timurkutluk, Cigdem; Mat, Mahmut D. (ELSEVIER SCI LTD, 2013)Vanadium molybdenum oxide system (VxMo(1-x)Oy for x <= 0.13) is synthesized through reducing acidified vanadate and molybdate solution at 60 degrees C by passing hydrogen sulfide gas through the solution. The electrochemical ... -
Investigation of micro-tube solid oxide fuel cell fabrication using extrusion method
Mat, Abdullah; Canavar, Murat; Timurkutluk, Bora; Kaplan, Yuksel (PERGAMON-ELSEVIER SCIENCE LTD, 2016)Extrusion is one of the most effective and inexpensive methods used in the production of ceramic tubes for tubular or micro-tubular solid oxide fuel cell (SOFC) applications. In this method, the parameters such as the ... -
Investigation of temperature distribution and performance of SOFC short stack with/without machined gas channels
Canavar, Murat; Mat, Abdullah; Celik, Selahattin; Timurkutluk, Bora; Kaplan, Yuksel (PERGAMON-ELSEVIER SCIENCE LTD, 2016)Solid oxide fuel cells (SOFCs) generate clean energy via electrochemical reactions at high operating temperatures. The distribution of the electrochemical reactions in the cell depends on the flow field design of the ... -
Katı oksit elektrolizör performansına etki eden parametrelerin deneysel incelenmesi
Korkmaz, Hatice (Niğde Üniversitesi, 2015)Bu yüksek lisans çalıGmasında, katı oksit elektrolizör (KOE) sisteminin kilit elemanı olan membran elektrot grubu (MEG) için bir dizi önemli üretim parametrelerinin optimizasyonu üzerine yoğunlaGılmıGtır. Bu kapsamda farklı ... -
Measurement of the temperature distribution in a large solid oxide fuel cell short stack
Celik, Selahattin; Timurkutluk, Bora; Mat, Mahmut D. (PERGAMON-ELSEVIER SCIENCE LTD, 2013)During the operation of solid oxide fuel cells (SOFCs), nonhomogeneous electrochemical reactions in both electrodes and boundary conditions may lead to a temperature gradient in the cell which may result in the development ... -
Mechanical and electrochemical behavior of novel electrolytes based on partially stabilized zirconia for solid oxide fuel cells
Celik, Selahattin; Timurkutluk, Bora; Toros, Serkan; Timurkutluk, Cigdem (ELSEVIER SCI LTD, 2015)In this study, 3 mol% yttria stabilized zirconia (3YSZ) is investigated as a SOFC electrolyte alternative to 8 mol% yttria stabilized zirconia (8YSZ). The mechanical and electrochemical properties of both materials are ... -
Novel electrolytes for solid oxide fuel cells with improved mechanical properties
Timurkutluk, Bora; Celik, Selahattin; Timurkutluk, Cigdem; Mat, Mahmut D.; Kaplan, Yuksel (PERGAMON-ELSEVIER SCIENCE LTD, 2012)The improvement of the mechanical properties of novel structured electrolytes with triangular cut off geometry in the active region is presented by filleting the tips of triangles. The effect of fillet radius on the bending ...
