@article{fdi:010093501, title = {{C}apturing and labeling {CO}2 in a jar : mechanochemical 17{O}-enrichment and ss{NMR} study of sodium and potassium (bi)carbonate salts}, author = {{P}each, {A}. and {F}abregue, {N}. and {E}rre, {C}. and {M}{\'e}tro, {T}. {X}. and {G}ajan, {D}. and {M}entink-{V}igier, {F}. and {S}cott, {F}. and {T}r{\'e}bosc, {J}. and {V}oron, {F}lorian and {P}atris, {N}icolas and {G}ervais, {C}. and {L}aurencin, {D}.}, editor = {}, language = {{ENG}}, abstract = {{W}ith the rapid increase in temperatures around the planet, the need to develop efficient means to reduce {CO}2 emissions has become one of the greatest challenges of the scientific community. {M}any different strategies are being studied worldwide, one of which consists of trapping the gas in porous materials, either for its short- or long-term capture and storage, or its re-use for the production of value-added compounds. {Y}et, to further the development of such systems, there is a real need to fully understand their structure and properties, including at the molecular-level following the physisorption and/or chemisorption of {CO}2 (which can lead to various species, including carbonate and bicarbonate ions). {I}n this context, 17{O} {NMR} naturally appears as the analytical tool of choice, because of its exquisite sensitivity to probe subtle differences in oxygen bonding environments. {T}o date, it has scarcely been used, due to the very low natural abundance of 17{O} (0.04%), and the difficulty in purchasing or obtaining commercial 17{O}-labeled compounds adapted to such investigations (e.g., 17{O}-{CO}2(g), or 17{O}-enriched {N}a- and {K}-(bi)carbonate salts, which can be readily transformed into {CO}2). {H}erein, we demonstrate how, using mechanochemistry, it is possible to enrich with 17{O} a variety of {N}a- and {K}-(bi)carbonate salts in a fast, economical, scalable, and user-friendly way. {T}he high enrichment levels enabled recording the first high-resolution 17{O} ss{NMR} spectra of these phases at different temperatures and magnetic fields. {F}rom these, the typical spectral signatures of (bi)carbonate ions could be obtained, showing their strong sensitivity to local environments and dynamics. {L}astly, we show how thanks to the selective 17{O}-labeling, other aspects of the reactivity of carbonates in materials can be unveiled using in situ17{O} ss{NMR}. {I}n the long run, it is expected that this work will open the way to more profound investigations of the structure and properties of carbon capture and storage systems, and, more generally speaking, of functional materials containing carbonates.}, keywords = {}, booktitle = {}, journal = {{C}hemical {S}cience}, volume = {[{E}arly access]}, numero = {}, pages = {[11 p.]}, ISSN = {2041-6520}, year = {2025}, DOI = {10.1039/d4sc08491h}, URL = {https://www.documentation.ird.fr/hor/fdi:010093501}, }