BF3复合酸盐/酸盐离子液体:合成,表征和热物理性质
Ji-Jun Zeng1, Yuan-Hao Liao1, Yu An1
1State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China Tel numbers.
概括
新的三化物 (BF3) 复合离子液体 (ILs) 具有较低的粘度和玻璃过渡温度. 这些新的BF3复合酸盐/酸盐ILs显示出各种应用的有前途性质.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 离子液体 (ILs) 是在低温下变为液体的盐,具有独特的溶剂特性.
- 三化物 (BF3) 复合可以改变IL的特性,但对酸盐/酸盐系统的系统研究是有限的.
研究的目的:
- 合成和描述新的BF3复合酸盐/酸盐离子液体.
- 研究和比较关键的热物理性质与非复杂的类似物.
- 根据这些新的IL的独特特征,评估这些新的IL的潜在应用.
主要方法:
- [Emim][X(BF3)2]离子液体的合成和表征.
- 测量热物理性质:密度,粘度,导电性,表面张力,相位转换和热稳定性.
- 推导性质的估计:热膨胀系数,分子体积,,格子能量,自由体积,临界温度,沸温度和蒸发的度.
主要成果:
- 成功合成和表征了四种新的BF3复杂化ILs.
- 与非复杂的IL相比,证明了明显较低的玻璃过渡温度和粘度.
- 呈现出高的自由体积分数和很好的坚持沃尔登规则,表明高的离子性.
- 被归类为脆弱的液体,具有低温应用的潜力.
结论:
- 合成的BF3复合离子液体具有独特的热物理特性,包括极低的玻璃过渡温度和低粘度.
- 这些特性使它们成为需要在低温下提高性能的应用程序的有希望的候选者.
- 该研究为新型离子液体的设计和应用提供了有价值的数据.
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