CPC B01J 23/745 (2013.01) [B01J 21/18 (2013.01); B01J 35/23 (2024.01); B01J 35/393 (2024.01); B01J 35/394 (2024.01); B01J 37/0072 (2013.01); B01J 37/04 (2013.01); B01J 37/084 (2013.01); B01J 37/086 (2013.01); C07C 29/145 (2013.01); C07C 67/303 (2013.01); C07C 209/48 (2013.01); C07C 209/52 (2013.01); C10G 2/332 (2013.01); C10G 2/50 (2013.01); C10G 2400/20 (2013.01); C10G 2400/22 (2013.01)] | 20 Claims |
1. Catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein:
dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm;
D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm; and
ω, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains;
wherein dp and D are measured by TGZ-TEM, and dp, D and ω conform to the following relation: 4.5 dp/ω>D≥0.25 dp/ω.
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