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Found: 5 Piece 0.001 sn
UN Sustainable Development : Affordable and clean ... ✕Researcher : Hilal DEMİR KIVRAK ✕
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Doç. Dr. Hilal DEMİR KIVRAKMühendislik Fakültesi
Affordable and clean energyEnsure access to affordable, reliable, sustainable and modern energy for all
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The advanced polymer composite coated fabrics as an anode electrode and photocatalytic glucose micro fuel cell design

Hilal DEMİR KIVRAK

At present, poly N-isopropyl acrylamide (PNIPAM) polymer composites containing titanium dioxide (TiO2) and carbon-TiO2 (C-TiO2) were designed for photocatalytic glucose electrooxidation by coating the textile fabric surface such as wool blended fabrics called Sign Cocana (SC), Valencia (VC), Dante (DT), and Broadway (BW). C-TiO2 was obtained from TiO2 in a furnace under hexane gas with a certain temperature and time. Polymer synthesis was realized by a polymerization method. The surface analyses of these polymer composite fabric electrodes were characterized by scanning electron microscopy-ene ...More

Article 2023 Mühendislik Fakültesi Journal of Photochemistry and Photobiology A: Chemistry444 15 Views
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Carbon nanotube supported Ga@PdAgCo anode catalysts for hydrazine electrooxidation in alkaline media

Hilal DEMİR KIVRAK

In this study, carbon nanotube supported (CNT) monometallic (Pd), trimetallic (PdAgCo), and multimetallic (Ga@PdAgCo) catalysts in different weight percentages (0.5-10) are synthesized by the NaBH4 reduction method and characterized transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-mass spectrometry (ICP-MS), and X-ray diffraction (XRD) analytical methods. Ac-cording to the TEM analysis results, while agglomeration doesn't observe for 3 Ga@PdAgCo(80:10:10)/CNT catalyst, agglomeration is observed in certain parts for 7 Ga@PdAgCo(80:10:10) ...More

Article 2022 Mühendislik Fakültesi Fuel324C 16 Views
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CNT-Supported Multi-Metallic (Ga@PdAgCo) Anode Catalysts: Synthesis, Characterization, and Glucose Electrooxidation Application

Hilal DEMİR KIVRAK

Here, Ga@PdAgCo catalysts were prepared by sequential reduction using carbon nanotubes (CNT) as support material. The catalysts at different weight percentages were characterized by inductively coupled plasma-mass spectrometry (ICP-MS), transmission electron microscopy (TEM), x-ray photoelectron spectroscopy (XPS), and x-ray diffraction (XRD) analytical techniques. Chronoamperometry (CA), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) measurements were applied to examine the glucose electrooxidation performance of the catalysts. Among the catalysts, the 7 Ga@PdAgCo(C ...More

Article 2022 Mühendislik Fakültesi Journal of Electronic Materials52 ( Special Issue: 2 ) 41 Views
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Promoting formic acid and ethylene glycol electrooxidation activity on Ga modified Pd based catalysts

Hilal DEMİR KIVRAK | Nahit AKTAŞ

Herein, carbon nanotube (CNT)-supported Ga@PdAgCo catalysts were synthesized by sodium borohydride (SBH) sequential reduction method. These catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma-mass spectrometry (ICP-MS). Characterization results revealed that these catalysts were succesfully preared at desired loading and atomic ratios. From the XRD pattern, the crystallite size of 0.5 Ga@PdAgCo(80:10:10)/CNT catalysts was found as 6.95 nm by utilizing the Scherrer equation. From ...More

Article 2022 Mühendislik Fakültesi International Journal of Hydrogen Energy47 ( 83 ) 35 Views
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Benzotiyofen@Pd as an efficient and stable catalyst for the electrocatalytic oxidation of hydrazine

Hilal DEMİR KIVRAK

An efficient methods for the synthesis of 2-(2,5-dimethylphenyl)-3-iodobenzo[b]thiophene (4) is described, and investigated its anode catalyst performance by using electrochemical methods (CV, CA and EIS). When 2-(2,5dimethylphenyl)-3-iodobenzo[b]thiophene (4) is applied, the specific activity is found as 25.811 mA/cm(2). Interestingly, when Palladium (Pd) is electrochemically deposited on the benzothiophene derivative, the catalytic activity increased the 80.930 mA/cm(2). This result is highest than the current metal based anode catalyst. Moreover, EIS and CA measurements display that Pd dope ...More

Article 2022 Mühendislik Fakültesi Fuel328 61 Views
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