Data supporting protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

The data presented in this article affords insight into the synthesis, characterization, and CO2 absorption performance of three low viscous protic ionic liquids (PIL), tetramethylgunidinium imidazole ([TMGH][Im]), tetramethylgunidinium pyrrole ([TMGH][Pyrr]) and tetramethylgunidinium phenol ([TMGH][PhO]). The density and viscosity of PILs were measured using density meter and viscometer. The experimental setup for CO2 absorption was followed weighing methods. in-situ FTIR and theoretical calculations were used to analyze the interaction between ILs or IL-H2O system and CO2.

本文所提供的数据可用于解析三种低黏度质子型离子液体（protic ionic liquids, PIL）的合成、表征及二氧化碳（CO₂）吸收性能，所涉离子液体分别为四甲基胍鎓咪唑盐([TMGH][Im])、四甲基胍鎓吡咯盐([TMGH][Pyrr])与四甲基胍鎓苯酚盐([TMGH][PhO])。本研究采用密度仪与黏度计测定了该类离子液体的密度与黏度；二氧化碳吸收性能的实验测试采用重量法完成；同时通过原位傅里叶变换红外光谱（in-situ FTIR）与理论计算方法，分析了纯离子液体及离子液体-水体系与二氧化碳的相互作用机制。