Published November 30, 2023 | Version v1
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Directing CO₂ electroreduction pathways for selective C₂ product formation using single-site doped Cu catalysts

  • 1. Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
  • 2. Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA
  • 3. Electrification and Energy Infrastructures Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  • 4. Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
  • 5. Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
  • 6. Chemistry Division, Brookhaven National Laboratory, Upton, NY 11973, USA
  • 7. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11971, USA
  • 8. Eyring Materials Center, Arizona State University, Tempe, AZ 85287, USA

* Contact person

Description

This dataset includes all the atomic coordinates of the optimized computational models from electronic structure calculations reported in the manuscript. In this work, we highlight that single-site noble metal dopants on the Cu surface can influence C–O bond dissociation in a key selectivity-determining intermediate (e.g., oxygen-bound *CH₂CHO), which in turn direct the post-C–C coupling pathways to ethylene versus ethanol. Combining theoretical and experimental analyses, we demonstrate that the favorability of C–O bond scission is controlled by the oxygen affinity of the metal dopant on the Cu catalyst. We find that the selectivity ratio of ethylene-to-ethanol displays a volcano relationship with respect to the oxygen binding strength on the doped surfaces.

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References

Preprint
Zhengyuan Li, Peng Wang, et al. Directing CO2 Electroreduction Pathways for Selective C2 Product Formation Using Single-Site Doped Cu Catalysts. Nature Chemical Engineering (2024) (accepted)