Table 5: Effect of Fe/Mn molar ratio on the catalytic performance.

Fe/MnCO conversion (%)Selectivity (%)

1/0 44.3 33.0 18.6 7.4 2.9 4
4/1 59.1 32.2 20.1 8.6 3.7 4.9
2/1 66.1 25.5 31.2 8.8 3.9 4.5
1/1 81.2 20.0 24.1 10.0 4.0 6.3
1/2 80.7 20.4 22.6 9.6 3.3 5.7
1/4 79.2 21.3 21.8 9.2 3.7 7.1
0/1 72.0 23.4 22.7 9.6 4.0 8.9