Browsing M.S. Theses by Subject "Catalysts."

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  • A DFT study on interaction between Au, Re and Au-Re surfaces with species involved in WGS reaction 
    Uzun, Ali. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this study, the steps of WGS reaction was investigated through studying the adsorption/co-adsorption of its reactants, products and possible intermediate species on Au(111), Re(001) and Au-Re(001) surfaces at atomic ...
  • A parametric study of selective CO oxidation using particulate and monolithic Pt-Co-CeO2 catalysts 
    Dikman, Funda. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The objective of this thesis was to conduct a parametric study of selective CO oxidation using particulate and monolithic Pt-Co-CeO2 catalyst supported on alumina. In this comparative study, the monolithic catalysts were ...
  • A QM study on determination of vibrational frequencies of the surface coordinated species involved in CDRM 
    Karagöz, Burcu. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in the Social Sciences, 2013., 2014.)
    The determination of the sites participating the reaction mechanism is of crucial importance in catalysis. Ni- and Co- based catalysts have been studied by our group for their activity in Catalytic Dry Reforming of Methane ...
  • An experimental study on cobalt based catalytic DRY reforming of methane catalysts 
    Yassı, Cansu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The aim of this study is to design Co-based CDRM (catalytic dry reforming of methane) catalysts and to understand the CDRM reaction kinetics over their surface. The thesis consists of two parts. In the first part, a 5 wt% ...
  • An experimental study on design, development and perormance evaluation of catalytic DRY reforming of methane catalysts 
    Bal, Hazal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The overall purpose of this research study is to design and develop effective non-noble catalysts having high and stable activity with suitable H2/CO product selectivity for the production of synthesis gas via CO2 reforming ...
  • An experimental study on mixed reforming performance of Co-based catalysts 
    Erşahin, Serhat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The major purpose of this research study is to investigate the mixed reforming, both CDRM + SR and CDRM + POX, activity over Co-Ce/ZrO2 bimetallic catalyst, and to experimentally determine the optimal mixture of oxygen ...
  • An experimental study on optimization of Pt-based trimetallic WGS catalysts 
    Kesim, Bahar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    The overall purpose of this study is to design and develop Pt-based, CeO2 supported trimetallic Pt-Re-V/CeO2 catalysts(s) having high WGS activity, selectivity and stability with suppressed methanation under realistic feed ...
  • An experimental study on WGS catalysts: Relating performance under realistic feel with oxygen holding capacity 
    Öztürk, Gözde. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    The present work is a part of an ongoing study aiming to design and develop high performance, steam tolerant, non-pyrophoric WGS catalyst(s) to be used in a demo-scale fuel processor (DFP) producing PEM grade hydrogen for ...
  • Au-based catalyst design for selective CO oxidation in hddrogen-rich streams 
    Tezcanlı, Sadi T. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The objective of this study was to investigate the selective CO oxidation over Au/ -Al2O3 catalyst modified with various metal oxide promoters (such as Mg, Mn, Fe, Ni, Ce, and Co) in hydrogen-rich environment. All catalysts ...
  • Catalyst screening and testing for steam reforming of methane to synthesis gas 
    Aktürk, Nilay. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The major aim of this study is to investigate the effects of different metals and supports on methane conversion and carbon monoxide selectivity in steam reforming (SR) of methane. The test matrix involves the investigation ...
  • Catalytic oxidation of methane in a microchannel reactor under oxygen-lean conditions 
    Kara, İsmail Bahadır. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The aim of this study is to investigate methane oxidation in a microchannel reactor under the effect of Pt, Rh and Ru catalysts supported on δ-Al2O3. Methane oxidation is an integrated part of the oxidative steam reforming ...
  • Comperative study of low temperature water gas shift reaction over partıculate and monolithic catalysts 
    Tuna, Sevinç. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Low temperature water gas shift (LTWGS) performance of supported Pt-ceria catalysts was investigated over particulate and monolithic structures using both pure and mixed realistic feed compositions in the 225-300oC range. ...
  • Effects of promoters on selective CO oxidation in hydrogen-rich streams over Pt/Al2O3 catalysts 
    Uğuz, Kamuran Erdem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    The objective of this study was to investigate the second promoter effects on Pt-X- Ce/Al2O3 and Pt-Co-Y/Al2O3 catalyst for selective CO oxidation. Seven promoters were tested in two groups; Ni, K and Co as one group (as ...
  • Kinetic study of selective CO oxdidation on Au/ Al2O3 catalyst 
    Demir, Mehtap. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Kinetic study of selective CO oxidation was performed over Au/Al2O3 catalyst prepared using homogeneous deposition-precipitation method. First, the alternative models proposed for the similar catalytic systems in the ...
  • Kinetics of low temperature CO oxidation over activated carbon supported Pt-CeOx catalyst 
    Gülyüz, Berrin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Kinetics of low-temperature CO oxidation was studied both in the presence and in the absence of carbon dioxide and hydrogen over air-oxidized activated carbon supported Pt-CeOx catalyst prepared by sequential impregnation ...
  • Kinetics of low temperature co oxidation over activated carbon supported Pt-SnOx catalysts 
    Acun, Seda. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This experimental study comprises a kinetic study of low-temperature CO oxidation both in the absence and presence of H2 over air-oxidized activated carbon supported 1wt.%Pt-0.25wt.%SnOx catalyst prepared by the sequential ...
  • Modeling of selective CO oxidation over CuOx-CoOx-CeO2 catalysts using artificial neural networks 
    Kantar, Ufuk. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This study is aimed to model design and reaction parameters of CO oxidation over CuOx-CoOx-CeO2 catalyst using neural and modular neural networks. Since there are many possible architectures for modular networks, the best ...
  • Parametric investigation of Ru-based catalysts for CO2 reforming of glycerol 
    Özden, Mert. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Glycerol is the major side product of the biodiesel production via transesterifi cation. Reforming processes of glycerol has started to draw attention due to increased biodiesel demand in the world. Apart from conventional ...
  • Parametric study of catalytic CO hydrogenation for producing dimethyl ether 
    Can, Hatice Merve. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The objective of this study is to examine the catalytic performance of bi-functional catalyst systems in direct synthesis of dimethyl ether (DME). Direct synthesis method involves two consecutive steps: methanol synthesis ...
  • Physical properties and preferential CO oxidation performance of Pt-Co-Ce/Al2O3 catalysts 
    Gözaçan, Zehra Tuğçe. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The objective of this study was to examine the effects of design parameters on the physical properties and on preferential CO oxidation (PROX) activity of Pt-Co-Ce/Al2O3 catalysts. The major catalyst design parameters ...

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