caa a22 4500 445388684 CHVBK 20180317143039.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s11144-010-0260-5 doi (NATIONALLICENCE)springer-10.1007/s11144-010-0260-5 Liquid phase hydroxylation of benzene to phenol over Cu/ZnO catalysts [Elektronische Daten] [İsmail Boz, Tuba Altınçekiç] Liquid phase hydroxylation of benzene to phenol using Cu/ZnO catalysts prepared by the polyol process was investigated in aqueous acetic acid (20/80, v/v). Gaseous oxygen and ascorbic acid were utilized as the oxidant and reducing agent, respectively. The results showed that there is an optimum copper content over zinc oxide support. Phenol was the sole product of the oxidation reaction. No other product in the liquid phase was detected by gas chromatography and mass spectroscopy. Cu/ZnO catalysts prepared by the polyol process were found to be highly effective catalysts for direct phenol synthesis in the liquid phase. A major disadvantage of this system was that Cu/ZnO catalysts suffered from dissolution in the reaction medium. Cu/ZnO catalysts prepared by the polyol reduction showed comparatively higher activities. Akadémiai Kiadó, Budapest, Hungary, 2010 Phenol nationallicence Benzene hydroxylation nationallicence Oxygen nationallicence Copper catalysts nationallicence Boz İsmail Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Avcılar, 34320, Istanbul, Turkey aut Altınçekiç Tuba Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Avcılar, 34320, Istanbul, Turkey aut Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/1(2011-02-01), 195-205 1878-5190 102:1<195 2011 102 11144 https://doi.org/10.1007/s11144-010-0260-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-010-0260-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Boz İsmail Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Avcılar, 34320, Istanbul, Turkey aut NATIONALLICENCE 700 1- Altınçekiç Tuba Department of Chemical Engineering, Faculty of Engineering, Istanbul University, Avcılar, 34320, Istanbul, Turkey aut NATIONALLICENCE 773 0- Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/1(2011-02-01), 195-205 1878-5190 102:1<195 2011 102 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer