Fig. 2: Performance of Co@Six catalysts in CO2 hydrogenation.
From: Silica accelerates the selective hydrogenation of CO2 to methanol on cobalt catalysts
a Performance of catalysts, standard reaction conditions for Co@Si0.95: 0.2 g of catalyst, pressure = 2.0 MPa; H2/CO2 feed ratio = 3:1, molar; temperature = 320 °C; GHSV = 6000 mL/g h. The mass of the other Co@Six catalysts was chosen to give the same cobalt content in the reactor. b Dependences of methanol yield on temperature. Each reaction was performed three times, and the corresponding data points are provided in the bar charts. Error bounds for the conversion and selectivity are ± 0.3% and ± 0.5%, respectively. c CO2 conversion and CH3OH selectivity of Co@Six catalysts at 260‒320 °C. d Stability test of Co@Si0.95 catalyst operated for 100 h in a flow reactor.
