Karaoğlu, KaanAkçay, Hakkı TürkerÖzçifçi, ZehraÇalışkan, Melike2021-11-092021-11-0920210272-8842https:/dx.doi.org/10.1016/j.ceramint.2021.06.208https://hdl.handle.net/20.500.12451/8616A Pd/Cr2O3 hybrid catalyst for cyanation reaction of some aryl halides was synthesized and characterized by XRD, SEM/EDS and TEM. The porous structure of the catalyst was also investigated by BET analysis. All XRD characteristic lines were obtained for Cr2O3 and Pd/Cr2O3 hybrid in good agreement with the reference XRD data. It was found that average particle size of Pd/Cr2O3 composite was about 22 nm. The catalytic efficiency of the Pd/Cr2O3–catalyzed cyanation reaction was evaluated for some m- and p-substituted aryl halides. The influence of solvent, reaction time, and base on the activity of the Pd/Cr2O3 catalyst was investigated, and the optimal reaction conditions were systematically obtained. Catalytic investigations showed that Pd/Cr2O3 hybrid can exhibit very good catalytic performance for cyanation reaction of aryl halides with a high yield of around 90%, and retained its catalytic activity throughout successive 5 cycles. Comparative TEM images of Pd/Cr2O3 hybrid catalyst, as-synthesized and after 5th cycle, showed that nano-sized structure of Pd/Cr2O3 catalyst was protected without significant change.eninfo:eu-repo/semantics/embargoedAccessChromium(III) OxideCyanationMesoporous CatalystConference Object4719278162782110.1016/j.ceramint.2021.06.208Q1WOS:000689712600003Q1