Bifunctional alloys for the electroreduction of CO2 and CO

H. A. Hansen, C. Shi, A. C. Lausche, A. A. Peterson, J. K. Nørskov*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We use density functional theory to study the reduction of CO2 and CO to hydrocarbons through a formyl pathway on (111) and (211) facets of L12 alloys with an A3B composition. We find that several alloys may reduce the thermodynamic overpotential for CO reduction by more than 0.2 V compared to a copper step, however, these alloys are most often rather unstable in aqueous environment or have low alloy formation energies and may be susceptible to segregation destroying the active sites. Strategies to improve alloy stability against corrosion or segregation would likely be needed in order to realize the full potential of these alloys.

Original languageEnglish
JournalPhysical Chemistry Chemical Physics
Volume18
Issue number13
Pages (from-to)9194-9201
ISSN1463-9076
DOIs
Publication statusPublished - 2016
Externally publishedYes

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