Journal
JOULE
Volume 3, Issue 7, Pages 1719-1733Publisher
CELL PRESS
DOI: 10.1016/j.joule.2019.05.007
Keywords
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Funding
- European Research Council (ERC) under the European Union [716539]
- Ministry of Human Capacities, Hungary [20391-3/2018/FEKUSTRAT]
- Army Research Office MURI [W911NF1410263]
- Ministry of Human Capacities [UNKP-18-3]
- [GINOP-2.3.2-15-2016-00013]
- European Research Council (ERC) [716539] Funding Source: European Research Council (ERC)
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The morphology of electrode materials is often overlooked when comparing different carbon-based electrocatalysts for carbon dioxide reduction. To investigate the role of morphological attributes, we studied polymer-derived, interconnected, N-doped carbon structures with uniformly sized meso or macropores, differing only in the pore size. We found that the carbon dioxide reduction selectivity (versus the hydrogen evolution reaction) increased around three times just by introducing the porosity into the carbon structure (with an optimal pore size of 27 nm). We attribute this change to alterations in the wetting and CO2 adsorption properties of the carbon catalysts. These insights offer a new platform to advance CO2 reduction performance by only morphological engineering of the electrocatalyst.
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