Simultaneous measurement of CO 2 sorption and swelling of phosphate-based ionic liquid
Simultaneous measurement of CO 2 sorption and swelling of phosphate-based ionic liquid
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DOI：
10.1016/j.gee.2016.11.004
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发表时间：
2016-10
影响因子：
13.3
通讯作者：
Junfeng Wang;C. Petit;Xiangping Zhang;A. Park
中科院分区：
文献类型：
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作者：
Junfeng Wang;C. Petit;Xiangping Zhang;A. Park
离子液体（IL）和纳米有机杂化材料（NOHMs）等CO2捕获溶剂的发展为CO2捕获提供了有趣的选择。采用衰减全反射红外光谱法研究了CO2与含无机酯基的1，3-二甲基咪唑磷酸盐（[MMIM] NH 4）、1-乙基-3-甲基咪唑磷酸盐（[EMM] NH 4）和1-乙基-3-甲基咪唑磷酸二乙酯（[EMM]DEP）的相互作用.同时测定了CO2诱导溶胀、CO2扩散系数和CO2捕获能力，以确定CO2捕获机制、动力学和扩散行为随阳离子烷基链长度的变化。CO2的亨利定律常数在4-11 MPa范围内，与文献报道的结果一致。
The development of alternative CO2capture solvents such as ionic liquids (ILs) and nanoparticle organic hybrid materials (NOHMs) have provided interesting options for CO2capture. In this study, CO2interactions with 1,3-dimethylimidazolium dimethylphosphate ([MMIM]DMP), 1-ethyl-3-methylimidazolium dimethylphosphate ([EMIM]DMP) and 1-ethyl-3-methylimidazolium diethylphosphate ([EMIM]DEP) that contain inorganic ester groups based on phosphate, were investigated using ATR FT-IR spectroscopy. CO2-induced swelling, CO2diffusivity and CO2capture capacity were simultaneously measured to identify CO2capture mechanisms, kinetics and diffusion behaviors as a function of the alkyl chain length of the cation. Henry's law constants of CO2were found to be in the range of 4–11 MPa, which is in agreement with those reported in other studies.