[2C09-21] CO2 recovery/conversion

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)Japanese

[2C20] CO₂ hydrogenation over alkali metal modified Rh–MoOx catalysts

○Takuma Sato¹, Yusei Kamiya¹, Zenghao Wei¹, Hiroki Miura^1,2, Tetsuya Shishido^1,2 (1. Tokyo Metropolitan University, 2. Research Center for Hydrogen Energy-based Society)

Keywords:

CO2 hydrogenation,Ethanol,Alkali metal

Ethanol synthesis via CO₂ hydrogenation is a promising approach for converting CO₂ into value-added chemicals. However, improving ethanol selectivity and catalyst stability remains a challenge. Our group previously demonstrated that a Rh–MoOx catalyst enables ethanol production from CO₂. In this study, we investigated the effect of alkali metal additives on the selectivity of supported Rh–MoOx catalysts. The results revealed that the addition of alkali metals, particularly lithium and sodium, significantly enhanced ethanol selectivity. These findings suggest that alkali metal modification is a promising strategy for improving catalyst performance in CO₂ hydrogenation to ethanol.