188bet apk on preparation of advanced Ni-Ga based catalysts for converting CO2 to methanol

The paper covered preparations and characterisations 188bet apk Ni-Ga based catalysts including Ni-Ga alloy, Ni-Ga/mixed oxides, Ni-Ga/ mesosilica and Ni-Ga-Co/mesosilica for synthesis 188bet apk methanol from direct reduction 188bet apk CO2 under hydrogen. The Ni-Ga alloy and Ni-Ga/ mixed oxides were prepared by metal melting method established at 1500oC and co-condensation-evaporation method at 80oC for 24 hours, respectively. The Ni-Ga/mesosilica and Ni-Ga-Co/mesosilica catalysts were both prepared by wet impregnation method at room temperature for 24 hours. The dried white powders obtained from the co-condensation-evaporation and the impregnation procedures were contacted with NaBH4/ethanol solution for reducing metal cations to alloy state at room temperature. Investigations on conversion 188bet apk CO2 showed that the Ni-Ga/mesosilica and the Ni-Ga-Co/mesosilica catalysts behaved as the best candidates for the process when showing its high conversion 188bet apk CO2 and selectivity 188bet apk methanol at high pressure 188bet apk 35 bars. Especially, the Ni-Ga