{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["13(21)"],"submitter":["Ab Rahim AH"],"pubmed_abstract":["A series of ammonium-based protic ionic liquids (APILs) namely ethanolammonium pentanoate [ETOHA][C5], ethanolammonium heptanoate [ETOHA][C7], triethanolammonium pentanoate [TRIETOHA][C5], triethanolammonium heptanoate [TRIETOHA][C7], tributylammonium pentanoate [TBA][C5] and tributylammonium heptanoate [TBA][C7] was synthesized <i>via</i> proton transfer. Their structural confirmation and physiochemical properties namely thermal stability, phase transition, density, heat capacity (<i>C</i><sub>p</sub>) and refractive index (RI) have been determined. Specifically, [TRIETOHA] APILs have crystallization peaks ranging from -31.67 to -1.00 °C, owing to their large density values. A comparison study revealed the low <i>C</i><sub>p</sub> values of APILs in comparison to monoethanolamine (MEA) which could be advantageous for APILs to be used in CO<sub>2</sub> separation during recyclability processes. Additionally, the performance of APILs toward CO<sub>2</sub> absorption was investigated by using a pressure drop technique under a pressure range of 1-20 bar at 298.15 K. It was observed that [TBA][C7] recorded the highest CO<sub>2</sub> absorption capacity with the value of 0.74 mole fraction at 20 bar. Additionally, the regeneration of [TBA][C7] for CO<sub>2</sub> absorption was studied. Analysis of the measured CO<sub>2</sub> absorption data showed marginal reduction in the mole fraction of CO<sub>2</sub> absorbed between fresh and recycled [TBA][C7] thus proving the promising potential of APILs as good liquid absorbents for CO<sub>2</sub> removal."],"journal":["RSC advances"],"pagination":["14268-14280"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10168136"],"repository":["biostudies-literature"],"pubmed_title":["Synthesis and characterization of ammonium-based protic ionic liquids for carbon dioxide absorption."],"pmcid":["PMC10168136"],"pubmed_authors":["Abd Ghani N","Ab Rahim AH","Yunus NM","Othman Zailani NZ","Allim MF","Mohd Fariddudin SA","Jaffar Z","Umar M"],"additional_accession":[]},"is_claimable":false,"name":"Synthesis and characterization of ammonium-based protic ionic liquids for carbon dioxide absorption.","description":"A series of ammonium-based protic ionic liquids (APILs) namely ethanolammonium pentanoate [ETOHA][C5], ethanolammonium heptanoate [ETOHA][C7], triethanolammonium pentanoate [TRIETOHA][C5], triethanolammonium heptanoate [TRIETOHA][C7], tributylammonium pentanoate [TBA][C5] and tributylammonium heptanoate [TBA][C7] was synthesized <i>via</i> proton transfer. Their structural confirmation and physiochemical properties namely thermal stability, phase transition, density, heat capacity (<i>C</i><sub>p</sub>) and refractive index (RI) have been determined. Specifically, [TRIETOHA] APILs have crystallization peaks ranging from -31.67 to -1.00 °C, owing to their large density values. A comparison study revealed the low <i>C</i><sub>p</sub> values of APILs in comparison to monoethanolamine (MEA) which could be advantageous for APILs to be used in CO<sub>2</sub> separation during recyclability processes. Additionally, the performance of APILs toward CO<sub>2</sub> absorption was investigated by using a pressure drop technique under a pressure range of 1-20 bar at 298.15 K. It was observed that [TBA][C7] recorded the highest CO<sub>2</sub> absorption capacity with the value of 0.74 mole fraction at 20 bar. Additionally, the regeneration of [TBA][C7] for CO<sub>2</sub> absorption was studied. Analysis of the measured CO<sub>2</sub> absorption data showed marginal reduction in the mole fraction of CO<sub>2</sub> absorbed between fresh and recycled [TBA][C7] thus proving the promising potential of APILs as good liquid absorbents for CO<sub>2</sub> removal.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 May","modification":"2025-04-22T05:08:48.788Z","creation":"2025-04-05T21:17:42.295Z"},"accession":"S-EPMC10168136","cross_references":{"pubmed":["37179994"],"doi":["10.1039/d3ra01345f"]}}