1. Sodium-Containing Spinel Zinc Ferrite as a Catalyst Precursor for the Selective Synthesis of Liquid Hydrocarbon Fuels.
- Author
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Choi, Yo Han, Ra, Eun Cheol, Kim, Eun Hyup, Kim, Kwang Young, Jang, Youn Jeong, Kang, Kyeong‐Nam, Choi, Sun Hee, Jang, Ji‐Hyun, and Lee, Jae Sung
- Subjects
ZINC ferrites ,CATALYSTS ,CHEMICAL synthesis ,FOSSIL fuels ,ALKENES - Abstract
A microwave-assisted hydrothermal synthesis produces ZnFe
2 O4 containing Na residue as a precursor to a CO2 hydrogenation catalyst that displays high CO2 conversion and high selectivity to liquid hydrocarbon products in the gasoline and diesel range with high olefin-to-paraffin ratios. Compared to reference catalysts derived from Fe2 O3 and a ZnO-Fe2 O3 physical mixture, the ZnFe2 O4 -derived catalyst contains well-dispersed iron particles with Zn serving as a structural promoter. A profound effect of the residual Na as an electronic promoter is also observed, which improves the selectivity for C5+ hydrocarbons and olefins. The ZnFe2 O4 -derived catalyst exhibits excellent performance in the CO2 Fischer-Tropsch reaction as it forms the active Hägg iron carbide (χ-Fe5 C2 ) phase readily through the in situ carburization of iron. [ABSTRACT FROM AUTHOR]- Published
- 2017
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