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Browsing 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 ...
Characterization and photocatalytic activity of sepiolite-TiO2 and Na-montmorillonite-TiO2 catalysts

Sayınsöz, Elçin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

This study focused on structural and photocatalytic properties of TiO2 incorporated Sepiolite and Na-Montmorillonite. Catalyst characterization was carried out by thermal gravimetric analysis (TGA), X-ray diffraction (XRD), ...
CO2 reforming of CH4 over structured Ni-based catalysts

Leba, Aybüke. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)

The aim of this study was to contribute to the development of an economical CDRM process requiring less amount of energy and utilizing cheaper, more active and more stable catalyst. For this purpose, the photocatalytic ...
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 ...
Experimental and computational study of selective co oxidation over Au/Al2O3 catalyst

Davran, Tuğba. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)

This study objects the experimental and computational investigation of preferential oxidation of carbon monoxide over Al2O3 supported gold catalysts. In the experimental part of the study, reaction kinetics of CO oxidation ...
Heterogeneous photocatalytic activity of transition-metal cation impregnated TiO2

Rakshandeh (Bazargan), Parisa Deljouie. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1993., 1993.)

Irradiation of aqueous Ti02 dispersions containing metal ions with light of energy equal or greater than the bandgap of the catalyst. leads to a deposition on the semiconductor particle surface. This photodeposition process ...
Katalitik hidrojen giderme reaksiyonlarının adsorplanma ve reaksiyon parametrelerinin gazkatı kromatografisi yöntemiyle incelenmesi

Önsan, Zeynep İlsen. (Thesis (Assoc. Prof.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1979., 1979.)
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 ...

Browsing by Subject "Catalysts."

Browsing by Subject "Catalysts."

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