Details

Autor(en) / Beteiligte

• Choi, Yo Han
• Ra, Eun Cheol
• Kim, Eun Hyup
• Kim, Kwang Young
• Jang, Youn Jeong
• Kang, Kyeong‐Nam
• Choi, Sun Hee
• Jang, Ji‐Hyun
• Lee, Jae Sung

Titel

Sodium‐Containing Spinel Zinc Ferrite as a Catalyst Precursor for the Selective Synthesis of Liquid Hydrocarbon Fuels

Ist Teil von

• ChemSusChem, 2017-12, Vol.10 (23), p.4764-4770

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Quelle

Wiley Online Library

Beschreibungen/Notizen

• A microwave‐assisted hydrothermal synthesis produces ZnFe2O4 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 Fe2O3 and a ZnO–Fe2O3 physical mixture, the ZnFe2O4‐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 ZnFe2O4‐derived catalyst exhibits excellent performance in the CO2 Fischer–Tropsch reaction as it forms the active Hägg iron carbide (χ‐Fe5C2) phase readily through the in situ carburization of iron. It's a gas: A catalyst derived from spinel ZnFe2O4 containing Na residue displays high CO2 hydrogenation activity and liquid‐fuel selectivity in the gasoline and diesel range with high olefin‐to‐paraffin ratios.