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Table 1 Metal dispersion D, the amounts of released H2 and CO per gram of the Ga3Ni2 catalyst determined from TPD experiments, the reaction rate \( {r}_{CO_2} \), and the CO2 turnover frequency (TOF) at 500 °C of the catalyst reduced at two different temperatures of 300 or 600 °C, respectively

From: The effect of surface oxidation on the catalytic properties of Ga3Ni2 intermetallic compound for carbon dioxide reduction

Reduction T D (%) H2–TPD (μmol H2 g−1) CO–TPD (μmol CO g−1) \( {r}_{CO_2} \) at 500 °C (μmol CO2 g−1 s−1) TOF at 500 °C (s−1)
300 °C 0.06 ± 0.01 1.8 ± 0.2 0.07 ± 0.01 1.4 ± 0.15 0.42 ± 0.04
600 °C 0.11 ± 0.01 3.2 ± 0.2 0.12 ± 0.01 2.2 ± 0.15 0.39 ± 0.04