“…Together with metal-doped zeolites, metals supported on metal oxides have also been reported as effective catalysts for the conversion of methane to aromatics. In 1991, Ismailov et al observed that the high-temperature contact of methane with Re/Al 2 O 3 catalysts generated new surface sites active for the formation of benzene (434). Moderate conversion and aromatic selectivities were obtained by Abasov et al (435) using Ni/ Al 2 O 3 catalysts (75% methane conversion, 75% benzene selectivity) and Claridge et al ( 436) using K/BaCO 3 and/or NaCl/MnO 2 (13% conversion, 18-23% selectivity).…”