English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Global warming is seen as a drastic environmental problem nowadays. Carbondioxide (CO 2 ) concentration in the Earth's atmosphere is linked to theaverage temperature on the surface of the planet. Carbon capture and storage isan important technological endeavor aiming to improve the ecology. The presentwork investigates reaction paths that are responsible for CO 2 chemisorption bythe ammonium- and phosphonium-based ionic liquids containing an aproticheterocyclic anion 2-cyanopyrrolidine. We show that two moles of CO 2 per onemole of the gas scavenger can be theoretically fixed by such ionic liquids.Both the cation and anion participate in the chemisorption. The correspondingstandard enthalpies are moderately negative. The barriers of all reactionsinvolving the phosphonium-based cation are relatively small and favor practicalapplications of the considered sorbents. The performance of the ammonium-basedcation is less favorable due to the inherent instability of thetetraalkylammonium ylide. The role is phosphonium ylide in the mechanism of thereaction is carefully characterized. The reported results foster a fundamentalunderstanding of the outstanding CO 2 sorption performance of the quaternaryammonium and phosphonium-based 2-cyanopyrrolidines.

On the Carbon Dioxide Capture by Quaternary Ammonium-Based and Phosphonium-Based Ionic Liquids. The Role of Steric Hindrances and Transition States