[Poster even no.] Poster presentatioin

[P20（On-line presentation）] From Single Metal to Bimetallic Sites: Enhanced Higher Hydrocarbons Yield of CO₂ Hydrogenation over Bimetallic Catalysts

○Yu Cui¹, Lisheng Guo¹, Guohui Yang¹, Noritatsu Tsubaki¹ (1. University of Toyama)

Sustainable conversion and utilization of CO₂ is one of the focuses of today’s society. However, the inertness of CO₂ molecules and weak chain growth ability limit the efficient utilization of CO₂. Herein, different from conventional Fe-based catalysts, a series of bimetallic catalysts (FeCo) were prepared to investigate the effects of cobalt species existence on higher hydrocarbons yield of CO₂ hydrogenation. The existence of cobalt in bimetallic particles promotes the formation of small-size iron carbides. Meanwhile, a suitable surface composition of Co (2.4 at. %) and Fe (7.4 at. %) element of Co/Fe@C-8 catalyst is helpful to promote the selective generation of C₂₊ products, thus presenting a high yield. This study can provide a systematic guidance to the utilization of high-efficient bimetallic catalysts for higher hydrocarbon formation with high yield from CO₂ hydrogenation.

Keywords:CO2 Hydrogenation, Bimetallic Catalyst, Cobalt