Investigation of reaction mechanisms of CO₂ reduction to methanol by Ni-C₈₀ and Co-Si₆₀ catalysts

The CO₂ reduction on Ni-C₈₀ and Co-Si₆₀ are investigated and compared with various metal catalysts. In this work, the pathways to reduction of CO₂ to CH₃OH are examined. The ΔE_ad of metals on Ni-C₈₀ and Co-Si₆₀ indicated that studied metals have strong bonds with around atoms in Ni-C₈₀ and Co-Si₆₀. In this study, ΔE_ad of CO₂ adsorption on Ni-C₈₀ and Co-Si₆₀ are higher than ΔE_ad to capture the CO₂ on surfaces of various metal catalysts ca −0.156 eV. In this study, the desorption energy of CH₃OH on Ni-C₈₀ and Co-Si₆₀ are ca −0.318 eV. The over potentials on Ni-C₈₀ and Co-Si₆₀ are lower than various metal catalysts. The Ni-C₈₀ and Co-Si₆₀ can be proposed as efficient catalyst for reduction reaction of CO₂.