Research Article
Surface Structure and Catalytic Performance of Ni-Fe Catalyst for Low-Temperature CO Hydrogenation
Table 3
Gaussian fitting analysis of H2-TPR patterns of 16NixFe/Al2O3 catalysts.
| Catalyst | H2-consumption (mmol/g) | Reduction temperature (°C)/relative content (%) | Total | Reduced Fea | Reduced Ni | | | | Peak I | Peak II |
| 16Ni/Al2O3 | 2.04 | — | 2.04 | 432.4/33.0 | 500.5/35.8 | 570.9/31.2 | — | — | 16Ni1Fe/Al2O3 | 2.13 | 0.06 | 2.07 | 396.9/34.4 | 485.3/39.6 | 573.4/23.0 | 321.1/2.3 | 520.1/0.7 | 16Ni2Fe/Al2O3 | 2.36 | 0.25 | 2.11 | 381.3/36.5 | 486.8/41.7 | 609.0/12.5 | 281.3/6.2 | 496.0/3.1 | 16Ni4Fe/Al2O3 | 2.52 | 0.36 | 2.16 | 355.3/37.4 | 481.5/45.3 | 601.0/7.4 | 339.2/6.3 | 483.5/3.5 | 16Ni6Fe/Al2O3 | 2.59 | 0.47 | 2.12 | 347.4/38.6 | 460.6/38.7 | 591.4/6.7 | 312.0/10.9 | 454.2/5.2 | 16Ni8Fe/Al2O3 | 2.80 | 0.56 | 2.24 | 351.6/40.2 | 455.5/35.3 | 617.5/4.2 | 310.2/11.9 | 492.7/8.4 | 8Fe/Al2O3 | 0.56 | 0.56 | — | — | — | — | 349.9/66.3 | 521.8/33.7 |
|
|
The value calculated by different Fe content based on the H2-consumpution of 8Fe/Al2O3 catalyst.
|