http://www.cell.com/joule/fulltext/S2542-4351(17)30008-9
CO2 Electrochemistry: A New Strategy for CO2 Fixation and Energy Storage Yu Qiao , Jin Yi[image: ']Correspondence information about the author Jin YiEmail the author Jin Yi <jin...@aist.go.jp> , Shichao Wu , Yang Liu , Sixie Yang , Ping He , Haoshen Zhou4,[image: ']Correspondence information about the author Haoshen ZhouEmail the author Haoshen Zhou <hs.z...@aist.go.jp> 4Lead Contact Publication stage: In Press Corrected Proof DOI: http://dx.doi.org/10.1016/j.joule.2017.07.001 [image: show]Article Info <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> - PDF (6 MB) <http://www.cell.com/joule/pdf/S2542-4351%2817%2930008-9.pdf> - Extended PDF (6 MB) <http://www.cell.com/joule/pdfExtended/S2542-4351%2817%2930008-9> - Download Images(.ppt) <http://www.cell.com/joule/ppt/S2542-4351%2817%2930008-9.ppt> - Email Article <https://secure.jbs.elsevierhealth.com/action/showMailPage?pii=S2542-4351%2817%2930008-9&href=%2Fjoule%2Ffulltext%2FS2542-4351%2817%2930008-9&title=Li-CO%3Csub%3E2%3C%2Fsub%3E+Electrochemistry%3A+A+New+Strategy+for+CO%3Csub%3E2%3C%2Fsub%3E+Fixation+and+Energy+Storage&code=cell-site> - Add to My Reading List <http://www.cell.com/personalize/addFavoritePublication?doi=10.1016%2Fj.joule.2017.07.001> - Export Citation <https://secure.jbs.elsevierhealth.com/action/showCitFormats?pii=S2542-4351%2817%2930008-9&doi=10.1016%2Fj.joule.2017.07.001&code=cell-site> - Create Citation Alert <http://www.cell.com/action/addCitationAlert?doi=10.1016%2Fj.joule.2017.07.001> - Cited by in Scopus (0) <http://www.scopus.com/scopus/inward/citedby.url?doi=10.1016/j.joule.2017.07.001&partnerID=PK7LnDf2> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#> <https://www.altmetric.com/details.php?domain=www.cell.com&doi=10.1016%2Fj.joule.2017.07.001> PlumX Metrics <https://plu.mx/plum/a/?doi=10.1016/j.joule.2017.07.001&theme=plum-jbs-theme&hideUsage=true> [image: Learn more about article metrics] <http://www.cell.com/about-plumx-metrics> - Summary <http://www.cell.com/joule/abstract/S2542-4351%2817%2930008-9> - Full Text <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9> - Methods <http://www.cell.com/action/showMethods?pii=S2542-4351%2817%2930008-9> - Images/Data <http://www.cell.com/action/showImagesData?pii=S2542-4351%2817%2930008-9> - References <http://www.cell.com/joule/references/S2542-4351%2817%2930008-9> - Related Articles <http://www.cell.com/action/showRelatedArticles?pii=S2542-4351%2817%2930008-9> - Comments <http://www.cell.com/joule/comments/S2542-4351%2817%2930008-9> Hide Pane - Images/Data <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#imagesSubTab> View all Images/Data <http://www.cell.com/joule/fulltext/S2542-4351%2817%2930008-9#>Figure 1 Figure 2Figure 3Figure 4 [image: Opens large image] <http://www.cell.com/cms/attachment/2103909829/2080707122/gr1.jpg> Figure 1 Characterizations and Schematic of the Electrochemical CO2Reduction Process (A and B) Galvanostatic discharge profiles of the Li-CO2 cell with a configuration of (sputtered gold cathode)/(CO2-saturated 0.5 M LiClO4-DMSO electrolyte)/lithium foil. The current is 5 μA and the capacity is limited at 10 μAh (A) and 20 μAh (B), respectively. (C and D) Capacity-dependent *in situ* Raman spectra recorded during the corresponding discharge processes above: 10 μAh (C) and 20 μAh (D) cut-off capacity, respectively. Spectra collected on different discharge plateaus are separated by different colors (red and blue). *In situ* Raman peak intensities for Li2CO3 (1,085 cm−1), carbon (G band, 1,587 cm−1), and Li2O (521 cm−1) are demonstrated in the corresponding voltage profile (insert), respectively. (E) SEM images of the cathodes harvested at various discharge depths, in comparison with the pristine cathode. (F) The schematic for the achievement of CO2 fixation via Li-CO2electrochemistry technology. View Large Image <http://www.cell.com/cms/attachment/2103909829/2080707122/gr1.jpg> | Download PowerPoint Slide <http://www.cell.com/action/downloadFigures?pii=S2542435117300089&id=gr1.jpg> [image: Opens large image] <http://www.cell.com/cms/attachment/2103909829/2080707120/gr2.jpg> <http://www.cell.com/cms/attachment/2103909829/2080707120/gr2.jpg> <http://www.cell.com/action/downloadFigures?pii=S2542435117300089&id=gr2.jpg> [image: Opens large image] <http://www.cell.com/cms/attachment/2103909829/2080707121/gr3.jpg> <http://www.cell.com/cms/attachment/2103909829/2080707121/gr3.jpg> <http://www.cell.com/action/downloadFigures?pii=S2542435117300089&id=gr3.jpg> [image: Opens large image] <http://www.cell.com/cms/attachment/2103909829/2080707119/gr4.jpg> <http://www.cell.com/cms/attachment/2103909829/2080707119/gr4.jpg> <http://www.cell.com/action/downloadFigures?pii=S2542435117300089&id=gr4.jpg> Expand allCollapse all Highlights - • Provide deeper insight into the mechanism of aprotic Li-CO2 electrochemistry - • Build a new strategy for CO2 electrochemical fixation into carbon - • Design a flexible route for both CO2 fixation and a reversible Li-CO2 battery Context & Scale As one of the predominant greenhouse gases, fixing carbon dioxide (CO2) is one of the major global challenges. Although substantial efforts have been made to fix and utilize CO2 through various methodologies, achievement of CO 2 fixation into other chemicals still requires a large input of energy, inevitably leading to additional pollution. Therefore, utilizing a reversible battery system for renewable energy storage in a cost-effective and eco-friendly CO2 fixation strategy would be an ideal model. Here, we first provide a new strategy for CO2 fixation through a rechargeable/irreversible Li-CO2 electrochemical technology. More revolutionary, turning the originally irreversible process into a reversible cycle by the use of a specific precious metal catalyst, the newly proposed CO2 fixation strategy could further evolve into an energy storage technique in which CO2 acts as an energy carrier to store and release renewable energy. Summary Large energy is required for traditional CO2 fixation, leading to more CO2 emission and additional pollutants. Recently, integrating renewable energy with CO2 fixation has attracted increasing attention as a sustainable strategy. Here, based on a systematic investigation on aprotic Li-CO2 electrochemistry, we first provide an alternative strategy for either CO2 fixation or energy storage. Both strategies share the same CO2 reduction process with the formation of Li2CO3 and carbon. Subsequently, CO2 fixation is achieved through a rechargeable/irreversible oxidation process, during which Li2CO3 is decomposed, while the carbon obtained remains fixed. Moreover, a reversible Li-CO2 battery system has been realized based on co-oxidization of the resulting carbon and Li2CO3 using a Ru catalyst. Consequently, by shedding light on the fundamental reaction mechanism of aprotic Li-CO2 electrochemistry, the proof of concept presented here provides strong theoretical underpinning for developing flexible routes for both CO2 fixation and Li-CO2 energy storage.http://www.cell.com/joule/fulltext/S2542-4351(17)30008-9 On 9 Aug 2017 22:57, "Eric Durbrow" <durb...@gmail.com> wrote: > > > If I understand this correctly, researchers have developed a way to take a > stream of pure CO2 and extract oxygen and carbon at very high efficiency. > At least according to the summary, ambient stream may be possible and > efficient. > > summary: https://phys.org/news/2017-08-battery-inspired- > strategy-carbon-fixation.html > > P.S. I tried to find the abstract but could not get to it. Perhaps not out > yet. > > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to geoengineering+unsubscr...@googlegroups.com. > To post to this group, send email to geoengineering@googlegroups.com. > Visit this group at https://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
