Electrochemical CO 2 reduction to high-concentration pure formic acid solutions in an all-solid-state reactor

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dc.citation.articleNumber3633en_US
dc.citation.issueNumber1en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber11en_US
dc.contributor.authorFan, Leien_US
dc.contributor.authorXia, Chuanen_US
dc.contributor.authorZhu, Pengen_US
dc.contributor.authorLu, Yingyingen_US
dc.contributor.authorWang, Haotianen_US
dc.date.accessioned2020-08-14T20:13:38Zen_US
dc.date.available2020-08-14T20:13:38Zen_US
dc.date.issued2020en_US
dc.description.abstractElectrochemical CO2 reduction reaction (CO2RR) to liquid fuels is currently challenged by low product concentrations, as well as their mixture with traditional liquid electrolytes, such as KHCO3 solution. Here we report an all-solid-state electrochemical CO2RR system for continuous generation of high-purity and high-concentration formic acid vapors and solutions. The cathode and anode were separated by a porous solid electrolyte (PSE) layer, where electrochemically generated formate and proton were recombined to form molecular formic acid. The generated formic acid can be efficiently removed in the form of vapors via inert gas stream flowing through the PSE layer. Coupling with a high activity (formate partial current densities ~450 mA cm−2), selectivity (maximal Faradaic efficiency ~97%), and stability (100 hours) grain boundary-enriched bismuth catalyst, we demonstrated ultra-high concentrations of pure formic acid solutions (up to nearly 100 wt.%) condensed from generated vapors via flexible tuning of the carrier gas stream.en_US
dc.identifier.citationFan, Lei, Xia, Chuan, Zhu, Peng, et al.. "Electrochemical CO 2 reduction to high-concentration pure formic acid solutions in an all-solid-state reactor." <i>Nature Communications,</i> 11, no. 1 (2020) Springer Nature: https://doi.org/10.1038/s41467-020-17403-1.en_US
dc.identifier.doihttps://doi.org/10.1038/s41467-020-17403-1en_US
dc.identifier.urihttps://hdl.handle.net/1911/109224en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleElectrochemical CO 2 reduction to high-concentration pure formic acid solutions in an all-solid-state reactoren_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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