A08-A12

[A10] Direct CO₂ Fischer–Tropsch synthesis over cobalt catalyst supported on lanthanum ion-doped ceria

○Keigo Tashiro¹, Hikaru Konno¹, Akihide Yanagita¹, Takayoshi Ishimoto², Masaru Ogura³, Shigeo Satokawa¹ (1. Seikei University, 2. Hiroshima University, 3. The University of Tokyo)

Keywords:Lanthanum ion doped ceria, direct CO2-FTS, extrinsic oxygen vacancy

Hydrogenation from CO₂ to liquid hydrocarbons (HCs) via catalytic reaction is a rational strategy to realize the carbon neutrality. We succeeded in the conversion from CO₂ to liquid HCs over cobalt catalyst supported on lanthanum ion-doped cerium oxide under 300 °C and H₂/CO₂ = 3 condition in one reactor. Experimental and computational insights demonstrated that extrinsic oxygen vacancy formed by the introduction of lanthanum ion to ceria lattice strongly capture CO₂ and is the most important factor to achieve the catalytic conversion from CO₂ to liquid HCs.