Journal
NATURE CATALYSIS
Volume 2, Issue 3, Pages 251-258Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41929-019-0225-7
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Funding
- Ontario Research Fund Research-Excellence Program
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- CIFAR Bio-Inspired Solar Energy programme
- University of Toronto Connaught Program
- US DOE [DE-AC02-06CH11357]
- Canadian Light Source
- NSERC E.W.R. Steacie Memorial Fellowship
- Banting Postdoctoral Fellowships program
- Southern Ontario Smart Computing Innovation Platform (SOSCIP)
- Federal Economic Development Agency of Southern Ontario
- Province of Ontario
- IBM Canada
- Ontario Centres of Excellence
- Mitacs
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The renewable-energy-powered electrocatalytic conversion of carbon dioxide and carbon monoxide into carbon-based fuels provides a means for the storage of renewable energy. We sought to convert carbon monoxide-an increasingly available and low-cost feedstock that could benefit from an energy-efficient upgrade in value-into n-propanol, an alcohol that can be directly used as engine fuel. Here we report that a catalyst consisting of highly fragmented copper structures can bring C-1 and C-2 binding sites together, and thereby promote further coupling of these intermediates into n-propanol. Using this strategy, we achieved an n-propanol selectivity of 20% Faradaic efficiency at a low potential of -0.45 V versus the reversible hydrogen electrode ( ohmic corrected) with a full-cell energetic efficiency of 10.8%. We achieved a high reaction rate that corresponds to a partial current density of 8.5 mA cm(-2) for n-propanol.
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