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Prof.Dr. GÜLSÜN GÖKAĞAÇ ARSLAN
FACULTY OF ARTS AND SCIENCES
PublicationsResearchMembership & Awards
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Phone :  +90312210 3202
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Education

  Bachelor's, Middle East Technical University, Chemistry
  Master's, Middle East Technical University, Chemistry
  Doctorate, University of Sydney, Chemistry

Publications (INTERNATIONAL)

Journal Papers

  A.1 Gülsün Gökağaç, Hüseyin İşçi and W. Roy Mason, Electronic absorption and magnetic circular dichroism spectra for binuclear [Pt2(SO4)4X2]n- and [Pt2(HPO4)4X2]n- ions in aqueous solution. "Inorganic Chemistry", 31, (1992), p.2184-2191.
  A.2 Gülsün Gökağaç and Brendan J. Kennedy, Potential-dependent surface segregation in lead+ruthenium pyrochlore Pb2Ru2O7-y. "J. Electroanal. Chem.", 353, (1993), p.71-80.
  A.3 Gülsün Gökağaç, Brendan J. Kennedy, John D. Cashion and L. Joan Brown, Characterization of carbon-supported Pt-Sn bimetallic catalysts for the electrochemical oxidation of methanol. "J. Chem. Soc. Faraday Trans.", 89, (1993), p.151-157.
  A.4 Gülsün Gökağaç and Brendan J. Kennedy, Surface stability of bismuth-ruthenium oxide electrodes. "Langmuir", 9, (1993), p.1862-1867.
  A.5 Gülsün Gökağaç and Brendan J. Kennedy, Oxidative stability of bismuth-ruthenium pyrochlore Bi2Ru2O7-y. "J. Electroanal. Chem.", 368, (1994), p.235-239.
  A.6 Gökağaç, G., Tatar, L., Kısakürek, D., Ülkü, D., Diamminebis(2,4,6-trichlorophenolato)copper(II). "Acta Crystallographica Section C, Crystal Structure Communications", C55, (1999), p.1413-1416.
  A.7 Leyla Tatar, Gülsün Gökağac, Dinçer Ülkü, Diamminebis(2,4,6-tribromophenolato-O)copper(II). "Acta Crystallographica, Section C, Crystal Structure Communications", C56, (2000), p.668-669.
  A.8 Gökağaç, G., Leger, J. M. and Hahn, F., Effect of a thermal treatment on the activity of carbon-supported Pt, Pt+W and Pt+Mo electrocatalysts for methanol oxidation reaction. "Zeitschrift Für Naturforschung B - Chemical Sciences", Band 56b, (2001), p.1306-1314.
  A.9 Gülsün Gökağaç and Brendan J. Kennedy, Carbon Supported Pt+Os Catalysts for Methanol Oxidation. "Zeitschrift für Naturforschung B - Chemical Sciences", Band 57b, (2002), p.193-201.
  A.10 Şebnem Camadanlı, Necla Deveci, Gülsün Gökağaç and Hüseyin İşçi, Axial water substitution kinetics of sulphato- and hydrogenphosphato- bridged binuclear platinum (III) complexes. "Inorganica Chimica Acta", 351, (2003), p.1-6.
  A.11 Gülsün Gökağaç, Jean-Michel Leger and F. Hahn, Behaviour of bimetallic Pt-Pd carbon supported catalysts during methanol electrooxidation. "Zeitschrift Für Naturforschung B – Chemical Sciences", Band 58b, (2003), p.423-432.
  A.12 Cahit Hicyilmaz, N. Emre Altun, Zafir Ekmekci, Gulsun Gokagac, Pyrite-DTPI interaction as a function of pulp potential and pH. "Colloids and Surfaces A: Physicochem. Eng. Aspects", 233, (2004), p.11-24.
  A.13 Cahit Hicyılmaz, N. Emre Altun, Zafir Ekmekci and Gulsun Gokagac, Quantifying hydrophobicity of pyrite after copper activation and DTPI addition under electrochemically controlled conditions. "Minerals Engineering", 17, (2004), p.879-890.
  A.14 Taki Güler, Cahit Hicyılmaz, Gulsun Gokagac, Zafir Ekmekçi, Voltammetric and drift spectroscopy investigation in dithiophosphinate-chalcopyrite system. "Journal of colloid and interface science", 279, (2004), p.46-54.
  A.15 Gülsün Gökağaç, Leyla Tatar Yildirim, Muammer Sonsuz and Fatih Şen, Spectroscopic, magnetic and crystal structure analysis of diammine-bis(2,6-dibromo-4-chlorophenolato-O)copper(II). "Zeitschrift für Naturforschung B- Chemical Sciences", 60b, (2005), p.543-547.
  A.16 Taki Güler, Cahit Hicyılmaz, Gülsün Gökağaç and Zafir Ekmekçi, Electrochemical behaviour of chalcopyrite in the absence and presence of dithiophosphate. "International Journal of Mineral Processing", 75, (2005), p.217-228.
  A.17 Gülsün Gökağaç, Muammer Sonsuz, Fatih Şen, Duygu Kısakürek, Atom transfer rearrangement radical polymerization of diammine bis(2,4,6-trihalophenolato) copper(II) complexes in the solid state. "Zeitschrift gür Naturforschung", 61b, (2006), p.1222-1228.
  A.18 Taki Güler, Cahit Hiçyılmaz, Gülsün Gökağaç, Zafir Ekmekçi, Adsorption of dithiophosphate and dithiophosphinate on chalcopyrite. "Minerals Engineering", 19, (2006), p.62-71.
  A.19 Gülsün Gökağaç, Leyla Tatar Yıldırım, Muammer Sonsuz, Fatih Şen, Spectroscopic and cryystal structure analysis of diamminebis(2,4,6-triiodophenolato-O) copper(II). "Crystal Research and Technology", 41, (2006), p.523-527.
  A.20 Fatih Şen ve Gülsün Gökağaç, Different sized platinum nanoparticles supported on carbon: An XPS study on these methanol oşidation catalysts. "Journal of Physical Chemistry", 111, (2007), p.5715-5720.
  A.21 Fatih Şen ve Gülsün Gökağaç, Activitiy of carbon supported platinum nanoparticles toward methanol oxidation reaction: Role of metal precursor and a new surfactant, tert-octanethiol. "Journal of Physical Chemistry C", 111, (2007), p.1467-1473.
  A.22 Fatih Şen and Gülsün Gökağaç, Improving catalytic efficiency in the methanol oxidation reaction by inserting Ru in face-centered cubic Pt nanoparticles prepared by a new surfactant, tert-octanethiol. "Energy & Fuels", 22, (2008), p.1858-1864.
  A.23 Taki Güler, Cahit Hiçyılmaz, Gülsün Gökağaç ve Zafir Ekmekçi, Redox behavior of chalcopyrite. "Int. Journal of Natural and Engineering Sciences", 3, (2009), p.76.
  A.24 Selda Şen, Fatih Şen ve Gülsün Gökağaç, Preparation and characterization of nano-sized Pt-Ru/C catalysts and their superior catalytic activities for methanol and ethanol oxidation. "Physical Chemistry Chemical Physics", 13, (2011), p.6784 - 6792.
  A.25 Özgür Topuz, Baran Can Sağlam, Fatih Şen, Selda Şen, Gülsün Gökağaç, GülizGörgül, Effects of sodium hypochlorite on gutta-percha and resilon cones: An atomic force microscopy and scanning electron microscopy study. "Oral Surg Oral Med Oral Pathol Oral Radiol Endod", 112, (2011), p.e21 - e26.
  A.26 Fatih Şen, Selda Şen ve Gülsün Gökağaç, Efficiency enhancement of methanol/ethanol oxidation reactions on Pt nanoparticles prepard using a new surfactant, 1,1-dimethyl heptanethiol. "Physical Chemistry Chemical Physics", 13, (2011), p.1676-1684.
  A.27 Salih Ertan, Fatih Sen, Selda Sen, Gülsün Gökağaç, Platinum nanocatalysts prepared with different surfactants for C1-C3 alcohol oxidationz and their surface morphologies by AFM. "J. Nanopart. Res.", 14, (2012), p.922 - 933.
  A.28 Zafer Öztürk, Fatih Şen, Selda Şen, Gülsün Gökağaç, The preparation and characterization of nano-sized Pt-Pd/C catalysts and comparison of their superior catalytic activities for methanol and ethanol oxidation. "Journal of Materials Science", 47, (2012), p.8134-8144.
  A.29 Fatih Şen, Gülsün Gökağaç, Selda Şen, High performance Pt nanoparticles prepared by new surfactants for C1 to C3 alcohol oxidation reactions. "J Nanopart Res", (2013).
  A.30 Fatih Şen and Gülsün Gökağaç, Pt nanoparticles synthesized with new surfactants: Improvement in C1-C3 alcohol oxidation catalytic activity. "J Appl Electrochem", 44, (2014), p.199-207.
  A.31 Aysu Çokangın, Metin Aydın, Gülsün Gökağaç, Improved Pt/C electrocatalysts for methanol oxidation prepared by different reducing agents and surfactants and DFT studies on it. "Journal of Nanoparticle Research", 19, (2017), p.343.
 

Conference Papers

  A.1 Gökağaç, G., Hahn, H., Lamy, C. and Leger, J-M, Carbon supported Pt, Pt+W and Pt+Mo electrocatalysts for methanol oxidation: Electrochemical and IR spectroscopic characterisation. "199th Meeting of the Electrochemical Society - Washington, DC. 2001, Direct Methanol Fuel Cells", (2001), p.174-187.
  A.2 Gokagac, G., Hahn, F., C. Lamy, C. and Leger, J-M, Carbon supported Pt, Pt/W and Pt/Mo electrocatalyst for methanol oxidation: Electrochemical and IR spectroscopic characterization. "The Electrochemical Society, 199th Society Meeting, Washington DC, March 25-29 March, 2001", 2001-1, (2001), p.89.
  A.3 Taki Güler, Cahit Hiçyılmaz, Gülsün Gökağaç and Zafir Ekmekçi, Oxidation of pretreated chalcopyrite: A cyclic voltammetry study. "XI-th Balkan Mineral Processing Congress", (2005), p.613-620.
  A.4 Taki Güler, Cahit Hiçyılmaz, Gülsün Gökağaç and Zafir Ekmekçi, Voltammetric investigation of chalcopyrite oxidation in neutral condition. "12th International Metallurgy-Materials Congress and Fair", (2005), p.449-455.
  A.5 Gülsün Gökağaç and Çağlar Çelik, Carbon supported and surfactant stabilized metal nanocatalysts for direct metanol fuel cells. "International Hydrogen Energy Congress and Exhibition", (2005), p.51.
  A.6 C. Hiçyılmaz, N. E. Altun, Z. Ekmekçi, Gülsün Gökağaç, Electrochemical behavior of pyrite in the absence and presence of DTPI at acidic and alkaline conditions. "XXIII International Mineral Processing Congress", 1, (2006), p.609.
  A.7 T. Güler, C. Hiçyılmaz, G. Gökağaç, Z. Ekmekçi, Role of treatment on dithiophosphate adsorption on chalcopyrite. "XXIII International Mineral Processing Congress", 1, (2006), p.654.
  A.8 E. Bağcı, Z. Ekmekçi, G. Gökağaç, D. J. Bradshaw, The synergistic effect of mixtire of collectros on adsoption behaviour on chalcopyrite. "XXIII International Mineral Processing Congress", 1, (2006), p.625.
  A.9 Fatih Şen, Selda Candan ve Gülsün Gökağaç, Activity of carbon supported platinum nanoparticles toward ethanol oxidation reaction. "18. Uluslararası Katılımla Ulusal Elektron Mikroskopi Kongresi 26-29 Ağustos 2007 Anadolu Üniversite", (2007), p.P-111M.
  A.10 Topuz, Ö; Sağlam, B.C.; Gökağaç, G; Şen, F and Görgül, G, Evaluation of the effects of different disinfection solution on gutta-percha and resilon cones with atamic force microscopy. "3rd Symposium of the Turkish Endodontic Society 23-27 April 2008 Antalya", (2008).

Publications (NATIONAL)

 

Conference Papers

  A.1 Taki Güler, Cahit Hiçyılmaz and Gülsün Gökağaç, Electrochemical Behaviour of Chalcopyrite in alkaline condition. "X Balkan Mineral Processing Congress", (2003), s.121-126.
  A.2 Burcu Öztaş, Ümit Atalay, Cahit Hicyılmaz, Zafir Ekmekçi, Gulsun Gokagac, Electrochemistry of Pyrite Flotation in the Presence of Dithiophosphate. "8th International Conference on Environment and Mineral Processing, 24-26/6/2004", (2004), s.13-20.
  A.3 Cahit Hicyılmaz, N. Emre Altun, Zafir Ekmekci, Gulsun Gokagac, Investigation of hydrophobicity of pyrite as a function of pulp potential. "8th International Conference on Environment and Mineral Processing, 24-26/6/2004", (2004), s.247-253.
  A.4 Y. Özdil, Z. Ekmekçi, G. Gökağaç, Toplayıcıların pirit yüzeyine sogurm mekanizmasinin elektrokimyasal ve spektroskopic metotlarla incelenmesi. "7. Elektrokimya Günleri", 1, (2006).
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