More Like this

1. Ionic liquid catalyzes reactive CO ₂ capture

   https://doi.org/10.1039/D6EY00026F  

   Sartape, Rohan; Mishra, Rashmi; Gande, Vamsi V; Johnson, Sophia; Berry, Bianca; Amos, Ishaku; Chauhan, Rohit; Thorat, Amey; Shah, Jindal K; Singh, Meenesh R (January 2026, EES Catalysis)

   Ionic liquid catalyzes CO₂hydroxylation by facilitating pre-activation of CO₂viasolvent reorganization, thereby lowering the reaction's activation barrier. 

   more » « less
2. Recent advances in CO ₂ capture and reduction

   https://doi.org/10.1039/d2nr02894h  

   Wei, Kecheng; Guan, Huanqin; Luo, Qiang; He, Jie; Sun, Shouheng (August 2022, Nanoscale)

   Given the continuous and excessive CO 2 emission into the atmosphere from anthropomorphic activities, there is now a growing demand for negative carbon emission technologies, which requires efficient capture and conversion of CO 2 to value-added chemicals. This review highlights recent advances in CO 2 capture and conversion chemistry and processes. It first summarizes various adsorbent materials that have been developed for CO 2 capture, including hydroxide-, amine-, and metal organic framework-based adsorbents. It then reviews recent efforts devoted to two types of CO 2 conversion reaction: thermochemical CO 2 hydrogenation and electrochemical CO 2 reduction. While thermal hydrogenation reactions are often accomplished in the presence of H 2 , electrochemical reactions are realized by direct use of electricity that can be renewably generated from solar and wind power. The key to the success of these reactions is to develop efficient catalysts and to rationally engineer the catalyst–electrolyte interfaces. The review further covers recent studies in integrating CO 2 capture and conversion processes so that energy efficiency for the overall CO 2 capture and conversion can be optimized. Lastly, the review briefs some new approaches and future directions of coupling direct air capture and CO 2 conversion technologies as solutions to negative carbon emission and energy sustainability. 

   more » « less
3. Amine-Grafted Silica Gels for CO ₂ Capture Including Direct Air Capture

   https://doi.org/10.1021/acs.iecr.9b05228  

   Anyanwu, John-Timothy; Wang, Yiren; Yang, Ralph T. (April 2020, Industrial & Engineering Chemistry Research)

   null (Ed.)
4. Mechanistic insights into CO ₂ capture and electrochemical conversion in nonaqueous Na–CO ₂ batteries

   https://doi.org/10.1039/D5TA09674J  

   Jayan, Rahul; Mani, Satheesh; Islam, Md Mahbubul (February 2026, Journal of Materials Chemistry A)

   Developing efficient energy storage systems that capture and convert CO2 is critical for mitigating carbon emissions. Here, we report a Na–CO2 battery with ruthenium dioxide (RuO2) cathode catalysts and propane-1,3-diamine (PDA) as an electrolyte additive to enhance CO2 capture and conversion efficiency. The integration of CO2 adsorption and electrochemical reduction facilitates activation of the inert CO2 molecule and circumvents gas–solid–liquid ternary-phase reactions at the interface. We employed density functional theory (DFT) calculations to systematically unravel the reaction mechanisms and energetics governing CO2 reduction, both with and without PDA. Our results reveal an energetically favorable pathway toward the formation of Na2CO3 and C as final discharge products, rather than sodium oxalate (Na2C2O4). The CO2–amine adduct facilitates charge transfer from PDA to CO2, which results in activation of CO2. The kinetics of CO2 conversion and regeneration of PDA were found to be significantly enhanced on the RuO2 surface compared to the bulk electrolyte. More importantly, pre-activation of CO2 via the amine–CO2 adduct lowers the total overpotential to 2.44 V, compared to 3.13 V without PDA. This study provides fundamental insights into CO2 electroreduction in Na–CO2 batteries and underscores the promise of electrolyte engineering for sustainable CO2 utilization and high-performance energy storage. 

   more » « less
5. CO ₂ Capture by 2-(Methylamino)pyridine Ligated Aluminum Alkyl Complexes:

   https://doi.org/10.1002/ejic.202000437  

   Yokley, Timothy W.; Tupkar, Hrishikesh; Schley, Nathan D.; DeYonker, Nathan J.; Brewster, Timothy P. (May 2020, European Journal of Inorganic Chemistry)

   A set of novel, easily synthesized aluminum complexes, Al(κ2-N,N-2-(methylamino)pyridine)2R (R = Et, iBu) are reported. When subjected to 1 atm of CO2 pressure, each hemilabile pyridine arm dissociates and facilitates cooperative activation of the CO2 substrate reminiscent of a Frustrated Lewis Pair. This reaction has limited precedent for Al/N based Lewis Pair systems, and this is the first system readily shown to sequester multiple equivalents of CO2 per aluminum center. The ethyl variant then reacts further, inserting a third equivalent of CO2 into the aluminum alkyl to generate an aluminum carboxylate. Examples of this type of reactivity are rare under thermal conditions. A joint experimental/computational study validates the proposed reaction mechanism. 

   more » « less