SERKAN NACI KOC
Articles written in Journal of Chemical Sciences
Volume 128 Issue 1 January 2016 pp 67-71 Regular Articles
In this study, for the first time, MoO3/MgAl2O4 catalysts and their potassium-promoted forms were prepared and tested for oxidative dehydrogenation of propane. Catalysts were characterized with XRD, BET, NH3-TPD, TPR and XPS methods. Catalytic activity measurement was done with quartz microreactor between 450 and 550°C. It has been observed that the conversion of propane increased with temperature and total hydrocarbon selectivity increased with molybdenum oxide content. The acidity of catalysts decreased with potassium addition due to interaction with MoO3 sites. For this reason total hydrocarbon selectivity highly increased.
Volume 132 All articles Published: 21 November 2020 Article ID 0157
Furfuryl alcohol (FA), a valuable compound from furfural (FF) was synthesized by efficient Ni-Cu/ZrO2 catalysts. The catalysts with varying Ni and Cu loading were developed by sol-gel method and characterized by Brunauer-Emmet-Teller (BET) method, X-ray diffraction, Temperature Programmed Reduction (TPR), X-ray photoelectron spectroscopy techniques. Cu/ZrO2 and Ni/ZrO2 catalysts were also tested to compare the effect of the Ni-Cu/ZrO2 catalyst. Both Ni and Cu showed the synergistic effect on FA formation. The Ni-Cu/ZrO2 catalyst was used for hydrogenation of FF by changing pressure, catalyst loading,temperature and time. A 93% FA yield was achieved over the 7Ni-Cu/ZrO2 catalyst with 0.07 g Ni and 0.1 g Cu/1 g ZrO2 at 200 °C for 4 h under 1.5 MPa H2 pressure. The sol-gel Ni-Cu/ZrO2 catalyst without the use of expensive noble metals is effective on the hydrogenation of FF to FA relatively in mildly reaction pressure.
Volume 133, 2021
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