Preparation of nano-structured Fe<sub>3</sub>O<sub>4</sub> catalysts and their performance in Fischer-Tropsch synthesis

TU Jun-ling; XU Yong-jun; DING Ming-yue; WANG Tie-jun; MA Long-long; WANG Min-long

Volume 43 Issue 07

Jul. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(07): 839-845

TU Jun-ling, XU Yong-jun, DING Ming-yue, WANG Tie-jun, MA Long-long, WANG Min-long. Preparation of nano-structured Fe3O4 catalysts and their performance in Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2015, 43(07): 839-845.

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TU Jun-ling, XU Yong-jun, DING Ming-yue, WANG Tie-jun, MA Long-long, WANG Min-long. Preparation of nano-structured Fe₃O₄ catalysts and their performance in Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2015, 43(07): 839-845.

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Preparation of nano-structured Fe₃O₄ catalysts and their performance in Fischer-Tropsch synthesis

1.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2.
Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan 523808, China;
3.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Received Date: 2015-05-04
Rev Recd Date: 2015-06-27
Publish Date: 2015-07-30

Abstract

Abstract

Two shape-defined nano-structured Fe₃O₄ catalysts such as Nano-Microsphere (FNM) and Nano-Flake (FNF) were prepared by a simple solvothermal method. The effects of precursor type on Fe₃O₄ crystal morphology was studied. It is found that the rate of nucleation and crystal growth have a crucial influence on the particle morphology. Compared to the traditional Fe catalyst, the shape-defined nano Fe₃O₄ catalysts could be easily reduced and transferred into active phases, resulting in higher Fischer-Tropsch synthesis (F-T) activity and C₅₊ selectivity. Especially, the FNM catalyst displayed higher catalytic activity and stability than the FNF catalyst. It was found that the FNF catalyst was more favorable to agglomeration because of shape change of the flakes. In addition, the results indicate that the hydrocarbon selectivity is strongly affected by the particle morphology.
- Fe₃O₄ nanocatalyst,
- morphology-defined nanoparticle,
- Fischer-Tropsch synthesis

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References

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