Na2O Promotion on CO2 Hydrogenation on the χ-Fe5C2(2 0 0) Surface

Ya Kun Qu; Xiao Guang Zhao; Li Xin Wang; Yu Wu

doi:10.4028/www.scientific.net/KEM.872.85

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 872Na2O Promotion on CO2 Hydrogenation on the...

Na₂O Promotion on CO₂ Hydrogenation on the χ-Fe₅C₂(2 0 0) Surface

Abstract:

Understanding the origin of the high activity of Na₂O promotion on the χ-Fe₅C₂(2 0 0) surface during CO₂ hydrogenation is imperative. In this work, we revealed how Na₂O promoted the catalytic performance of χ-Fe₅C₂during CO₂ hydrogenation. Detailed analyses confirmed that Na₂O addition facilitated the adsorption of CO₂ and promoted the desorption of product (C₂H₄). Electronic structure calculations suggested that the electron donating ability of Na could enhance the dissociation of CO₂, which is essential for producing hydrocarbons from CO₂.

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Periodical:

Key Engineering Materials (Volume 872)

Pages:

85-89

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.872.85

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Online since:

January 2021

Authors:

Ya Kun Qu*, Xiao Guang Zhao, Li Xin Wang, Yu Wu

Keywords:

CO₂ Hydrogenation, DFT, Na₂O Promoter, χ-Fe₅C₂(2 0 0)

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