新[Emim][BF3X]复杂离子离子液体的合成,表征和物理化学特性
Ji-Jun Zeng1, Bo Zhao1, Yu An1
1State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an 710065, China.
ACS omega
|January 15, 2024
概括
合成了具有复杂离子[Emim][BF3X]的新离子液体 (IL),并分析了它们的物理化学特性. 这些IL表现出"良好的 (或超级) 离子液体"的特征,基于粘度和导电性测量.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 离子液体 (ILs) 是具有可调节性质的多功能溶剂.
- 复杂的离子IL为各种应用提供了独特的特性.
研究的目的:
- 为了合成和描述一系列新的复杂离子ILs:[Emim][BF3X] (X = CH3SO3,EtSO4,HSO4,Tosylate).
- 研究这些IL的物理化学特性,包括密度,粘度,导电性和表面张力.
- 为了将实验数据与热力学和经验方程相关联,并计算关键参数.
主要方法:
- [Emim][BF3X]离子液体的合成.
- 使用核磁共振 (NMR),元素分析,差分扫描热度计 (DSC) 和热重力计 (TGA) 的表征.
- 在温度范围内测量物理化学性质 (密度,粘度,导电性,表面张力) (293.15358.15 K).
主要成果:
- 成功合成和表征[Emim][BF3X]IL系列.
- 关于密度,粘度,导电性和表面张力的综合数据作为温度的函数.
- 计算热膨胀系数,标准摩尔,格子潜在能量,粘度激活能量,表面和表面.
- 证明了对粘度和导电性的沃尔登规则的遵守.
结论:
- 合成的[Emim][BF3X]离子液体表现出有利的特性.
- 这些IL被归类为"好 (或超) 离子液体",因为它们在粘度和导电性方面的表现.
- 该研究为了解和利用这些复杂的离子ILs提供了有价值的数据.
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