Robust and synthesizable photocatalysts for CO2 reduction: a data-driven materials discovery

Arunima K. Singh, Joseph H. Montoya, John M. Gregoire and Kristin A. Persson ()
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Arunima K. Singh: Lawrence Berkeley National Laboratory
Joseph H. Montoya: Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory
John M. Gregoire: Joint Center for Artificial Photosynthesis, California Institute of Technology
Kristin A. Persson: Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract The photocatalytic conversion of the greenhouse gas CO2 to chemical fuels such as hydrocarbons and alcohols continues to be a promising technology for renewable generation of energy. Major advancements have been made in improving the efficiencies and product selectiveness of currently known CO2 reduction electrocatalysts, nonetheless, materials discovery is needed to enable economically viable, industrial-scale CO2 reduction. We report here the largest CO2 photocathode search to date, starting with 68860 candidate materials, using a rational first-principles computation-based screening strategy to evaluate synthesizability, corrosion resistance, visible-light absorption, and compatibility of the electronic structure with fuel synthesis. The results confirm the observation of the literature that few materials meet the stringent CO2 photocathode requirements, with only 52 materials meeting all requirements. The results are well validated with respect to the literature, with 9 of these materials having been studied for CO2 reduction, and the remaining 43 materials are discoveries from our pipeline that merit further investigation.

Date: 2019
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DOI: 10.1038/s41467-019-08356-1

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