Browsing by Author "Izgi, M. Sait"

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Designing of New Thermo Stabile Phthalocyanines: Synthesis, Characterization, and Thermal Studies
(Taylor & Francis inc, 2012) Agirtas, M. Salih; Gumus, Ilkay; Izgi, M. Sait
In this study, new phthalonitrile and phthalocyanines were synthesized and characterized. Starting material compound 3 was obtained by reaction of ninhydrin with 4-nitrophthalonitrile. Phthalocyanines 4-8 were prepared by reaction 4-(2-phenoxy-1, 3-dioxo-2, 3-dihydro-1H-inden-2-yloxy) phthalonitrile with corresponding metal salts. Compound 9 was obtained by reaction of phthaocyanine 4 with NaOH. This compound is soluble in water as sodium salts. Thermal properties of compounds 3-8 were investigated by TG and DTA. Thermal stabilities of compounds 4-8 are also reported. The novel compounds were characterized by elemental analysis, FTIR, H-1-NMR, and UV-VIS spectral data.
High Hydrogen Production Rate From Potassium Borohydride Hydrolysis With an Efficient Catalyst: Cnt@ru(0)
(Elsevier Science inc, 2022) Keskin, M. Salih; Agirtas, Mehmet Salih; Baytar, Orhan; Izgi, M. Sait; Sahin, Omer; Horoz, Sabit
We describe the production and catalytic activity of a carbon nanotube supported-Ru(0) (CNT@Ru(0)) catalyst. For the first time, the produced CNT@Ru(0) catalyst is used to achieve the greatest hydrogen production rate from potassium borohydride (KBH4) hydrolysis. The produced CNT@ Ru(0) catalyst shows promise in the creation of hydrogen from the degradation of KBH4. The hydrogen generation rate of CNT@Ru(0) is determined to be 86,264.85 mL min(-1) can with a low activation energy of 30.18 kJ mol(-1). CNTs are potential support for distributing metal catalysts, according to the current work. Furthermore, structural, morphological, and elemental characteristics of the produced CNT@Ru(0) catalyst are investigated.