Two-dimensional graphene-directed formation of cylindrical iron carbide nanocapsules for Fischer–Tropsch synthesis

2017 ◽  
Vol 7 (20) ◽  
pp. 4609-4621 ◽  
Author(s):  
Feng Jiang ◽  
Bing Liu ◽  
Wenping Li ◽  
Min Zhang ◽  
Zaijun Li ◽  
...  

Cylindrical Hägg carbide nanocapsules with a single (510) crystal facet were formed during the FTS reaction with the assistance of GO, which show excellent activity and selectivity for olefins.

ChemCatChem ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 3594-3594
Author(s):  
Hunmin Park ◽  
Duck Hyun Youn ◽  
Jae Young Kim ◽  
Won Yong Kim ◽  
Yo Han Choi ◽  
...  

ACS Catalysis ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 1264-1273 ◽  
Author(s):  
Yijia Li ◽  
Zheshen Li ◽  
Ali Ahsen ◽  
Lutz Lammich ◽  
Gilbère J. A. Mannie ◽  
...  

ChemCatChem ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 3488-3494 ◽  
Author(s):  
Hunmin Park ◽  
Duck Hyun Youn ◽  
Jae Young Kim ◽  
Won Yong Kim ◽  
Yo Han Choi ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29002-29007 ◽  
Author(s):  
Yi Liu ◽  
Jian-Feng Chen ◽  
Yi Zhang

Smaller iron or iron carbide particle was advantageous to form more light olefins and O/P of C2–C4 was more sensitive to pore size of catalysts.


2015 ◽  
Vol 5 (3) ◽  
pp. 1433-1437 ◽  
Author(s):  
V. V. Ordomsky ◽  
B. Legras ◽  
K. Cheng ◽  
S. Paul ◽  
A. Y. Khodakov

High reactivity of iron carbides enhances the Fischer–Tropsch reaction rate on supported iron catalysts. Carbon atoms in iron carbide are involved in the initiation of chain growth in Fischer–Tropsch synthesis.


Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 347
Author(s):  
Yang ◽  
Zhang ◽  
Liu ◽  
Ning ◽  
Han ◽  
...  

Different iron carbides were synthesized from the iron oxalate precursor by varying the CO carburization temperature between 320 and 450 °C. These iron carbides were applied to the high-temperature Fischer–Tropsch synthesis (FTS) without in situ activation treatment directly. The iron oxalate as a precursor was prepared using a solid-state reaction treatment at room temperature. Pure Fe5C2 was formed at a carburization temperature of 320 C, whereas pure Fe3C was formed at 450 °C. Interestingly, at intermediate carburization temperatures (350–375 °C), these two phases coexisted at the same time although in different proportions, and 360 °C was the transition temperature at which the iron carbide phase transformed from the Fe5C2 phase to the Fe3C phase. The results showed that CO conversions and products selectivity were affected by both the iron carbide phases and the surface carbon layer. CO conversion was higher (75–96%) when Fe5C2 was the dominant iron carbide. The selectivity to C5+ products was higher when Fe3C was alone, while the light olefins selectivity was higher when the two components (Fe5C2 and Fe3C phases) co-existed, but the quantity of Fe3C was small.


ChemCatChem ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 1300-1312 ◽  
Author(s):  
Diego Peña ◽  
Lise Jensen ◽  
Andrea Cognigni ◽  
Rune Myrstad ◽  
Thomas Neumayer ◽  
...  

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