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- W3119087802 abstract "Abstract Electroreduction of carbon dioxide (CO 2 ) over copper-based catalysts provides an attractive approach for sustainable fuel production. While efforts are focused on developing catalytic materials, it is also critical to understand and control the microenvironment around catalytic sites, which can mediate the transport of reaction species and influence reaction pathways. Here, we show that a hydrophobic microenvironment can significantly enhance CO 2 gas-diffusion electrolysis. For proof-of-concept, we use commercial copper nanoparticles and disperse hydrophobic polytetrafluoroethylene (PTFE) nanoparticles inside the catalyst layer. Consequently, the PTFE-added electrode achieves a greatly improved activity and Faradaic efficiency for CO 2 reduction, with a partial current density >250 mA cm −2 and a single-pass conversion of 14% at moderate potentials, which are around twice that of a regular electrode without added PTFE. The improvement is attributed to a balanced gas/liquid microenvironment that reduces the diffusion layer thickness, accelerates CO 2 mass transport, and increases CO 2 local concentration for the electrolysis." @default.
- W3119087802 created "2021-01-18" @default.
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- W3119087802 date "2021-01-08" @default.
- W3119087802 modified "2023-10-16" @default.
- W3119087802 title "Enhancing carbon dioxide gas-diffusion electrolysis by creating a hydrophobic catalyst microenvironment" @default.
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- W3119087802 doi "https://doi.org/10.1038/s41467-020-20397-5" @default.
- W3119087802 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7794506" @default.
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