Browsing by Author "Topcu, Yildiray"
Now showing items 1-14 of 14
-
Application of artificial neural networks to co-combustion of hazelnut husk-lignite coal blends
Yildiz, Zeynep; Uzun, Harun; Ceylan, Selim; Topcu, Yildiray (Elsevier Sci Ltd, 2016)The artificial neural network (ANN) theory is applied to thermal data obtained by non-isothermal thermogravimetric analysis (TGA) from room temperature to 1000 degrees C at different heating rates in air to study co-combustion ... -
Crystal structure and Hirshfeld surface analysis of (succinato-kappa O)[N,N,N ',N '-tetrakis(2-hydroxyethyl)ethylenediamine-kappa(5) O,N,N ',O ',O '']nickei(II) tetrahydrate
Kansiz, Sevgi; Dege, Necmi; Topcu, Yildiray; Atalay, Yusuf; Gaidai, Snizhana, V (Int Union Crystallography, 2018)In the title compound, [Ni(C10H24N2O4)(C4H4O4)]center dot 4H(2)O, the Ni-II cation is octahedrally coordinated by one O atom of the succinate anion and three O atoms and two N atoms from an N,N,N',N'-tetrakis(2-hydroxyet ... -
Demonstrating the suitability of canola residue biomass to biofuel conversion via pyrolysis through reaction kinetics, thermodynamics and evolved gas analyses
Tahir, Mudassir Hussain; Cakman, Gulce; Goldfarb, Jillian L.; Topcu, Yildiray; Naqvi, Salman Raza; Ceylan, Selim (Elsevier Sci Ltd, 2019)The identification of biomasses for pyrolytic conversion to biofuels depends on many factors, including: moisture content, elemental and volatile matter composition, thermo-kinetic parameters, and evolved gases. The present ... -
A highly fluorescent dinuclear silver(I) complex of pyrazine derivatives: Combined experimental and DFT/TD-DFT investigations
Alisir, Sevim Hamamci; Demir, Serkan; Topcu, Yildiray; Yang, Shi-Yao (Pergamon-Elsevier Science Ltd, 2013)A dinuclear neutral silver(l) complex, [Ag-2(Hpyzdc)(2)(mu-dmpyz)] (1) (H(2)pydc = pyrazine-2,3-dicarboxylic acid, dmpyz = 2,3-dimethylpyrazine), has been synthesized and characterized by elemental analysis, IR spectroscopy, ... -
A New Photoluminescent and Antibacterial Polymeric Silver(I) Complex Generated from Pyridine-2,3-dicarboxylic Acid
Alisir, Sevim Hamamci; Sariboga, Bahtiyar; Topcu, Yildiray; Yang, Shi-Yao (Springer, 2013)A new two-dimensional polymeric [Ag-2(mu-Hpydc)(2)(mu-pyz)](n) (1) (H (2) pydc = pyridine-2,3-dicarboxylic acid, pyz = pyrazine), has been synthesized and characterized by elemental analysis, IR spectroscopy, thermal ... -
A phytochemical-containing metal-organic framework: Synthesis, characterization and molecular simulations for hydrogen adsorption
Demir, Selcuk; Cepni, H. Merve; Topcu, Yildiray; Holynska, Malgorzata; Keskin, Seda (Elsevier Science Sa, 2015)As a result of involvement of all carboxylato/methoxo/oxo donor oxygen atoms of a phytochemical ferulic acid with zinc ions, a Zn-ferulate metal-organic framework (PhytoMOF-1), {[Zn-2(fer)(2)]}(n) is formed. The structure ... -
Product quality optimization in an integrated biorefinery: Conversion of pistachio nutshell biomass to biofuels and activated biochars via pyrolysis
Isitan, Secil; Ceylan, Selim; Topcu, Yildiray; Hintz, Chloe; Tefft, Juliann; Chellappa, Thiago; Goldfarb, Jillian L. (Pergamon-Elsevier Science Ltd, 2016)An economically viable transition to a renewable, sustainable energy future hinges on the ability to simultaneously produce multiple high value products from biomass precursors. Though there is considerable literature on ... -
Pyrolysis and optimization of chicken manure wastes in fluidized bed reactor: CO2 capture in activated bio-chars
Yildiz, Zeynep; Kaya, Nihan; Topcu, Yildiray; Uzun, Harun (Elsevier, 2019)In this study, the Response Surface Methodology (RSM) based on Central Composite Design (CCD) was used to determine the optimization of bio-char production from chicken manure wastes. The effects of temperature, heating ... -
Pyrolysis kinetics of hazelnut husk using thermogravimetric analysis
Ceylan, Selim; Topcu, Yildiray (Elsevier Sci Ltd, 2014)This study aims at investigating physicochemical properties and pyrolysis kinetics of hazelnut husk, an abundant agricultural waste in Turkey. The physicochemical properties were determined by bomb calorimeter, elemental ... -
Solvothermal synthesis and characterization of coordination polymers of cobalt(II) and zinc(II) with succinic acid
Demir, Selcuk; Kantar, Gunay Kaya; Topcu, Yildiray; Li, Qiaowei (Springer, 2012)The complexes [Co(C4H4O4)](n) (1) and [Zn(im)(2)(C4H4O4)](n) (2) (C4H4O4 = succinate dianion, suc; im = imidazole) have been synthesized solvothermally and characterized by elemental analysis, IR, TG-DTA, and single-crystal ... -
Synthesis, an experimental and quantum chemical computational study: Proton sharing in 4-Morpholinium bis(hydrogen squarate)
Korkmaz, Ufuk; Topcu, Yildiray; Tas, Murat; Bulut, Ahmet (Pergamon-Elsevier Science Ltd, 2015)The experimental and theoretical investigation results of a novel organic squarate salt of 4-Morpholinium bis(hydrogen squarate) (1), C6H14ON+ center dot C8H3O8-, were reported in this study. The crystal structure of the ... -
Synthesis, characterization, crystal structure, Hirshfeld surface analysis and spectroscopic properties of bis(5-aminoisophthalato) bispicolinecopper (II)
Erdogmus, Gulnur; Demircioglu, Zeynep; Heren, Zerrin; Topcu, Yildiray; Büyükgüngör, Orhan (Elsevier, 2020)The 2D coordination polymer of Cu(II), [Cu(5-aip) (3-pic)(2)](n) (5-aip = 5-aminoisophthalato, 3-pic = 3-picoline) was characterized by elemental analysis, FT-IR and UV-Vis spectroscopy and single crystal XRD techniques. ... -
Synthesis, crystal structure and EPR studies of vanadyl doped [Co(2-nbH)(2)(ina)(2)(H2O)] complex
Bozkurt, Esat; Celik, Yunus; Copur, Fatma; Dege, Necmi; Topcu, Yildiray; Karabulut, Bunyamin (Elsevier Science Bv, 2016)A novel aquabis(isonicotinamide-kappa N-1)bis(2-nitrobenzoato-kappa O-2,O';kappa O)cobalt(II), (hereafter [Co(2-nbH)(2)(ina)(2)(H2O)]; 2-nbH: 2-nitrobenzoic acid; ina: isonicotinamide), complex was synthesized and characterized ... -
Thermal behaviour and kinetics of alga Polysiphonia elongata biomass during pyrolysis
Ceylan, Selim; Topcu, Yildiray; Ceylan, Zeynep (Elsevier Sci Ltd, 2014)The pyrolysis characteristics and kinetics of Polysiphonia elongata were investigated using a thermogravimetric analyzer. The main decomposition of samples occurred between 225 degrees C and 485 degrees C at heating rates ...
