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

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dc.citation.articleNumber3633
dc.citation.issueNumber1
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber11
dc.contributor.authorFan, Lei
dc.contributor.authorXia, Chuan
dc.contributor.authorZhu, Peng
dc.contributor.authorLu, Yingying
dc.contributor.authorWang, Haotian
dc.date.accessioned2020-08-14T20:13:38Z
dc.date.available2020-08-14T20:13:38Z
dc.date.issued2020
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.
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.
dc.identifier.doihttps://doi.org/10.1038/s41467-020-17403-1
dc.identifier.urihttps://hdl.handle.net/1911/109224
dc.language.isoeng
dc.publisherSpringer Nature
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.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleElectrochemical CO 2 reduction to high-concentration pure formic acid solutions in an all-solid-state reactor
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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