Betaine·HCl-6EG-nNiCl<sub>2</sub>·6H<sub>2</sub>O低共熔离子液体的黏度和电导率

龚凯; 华一新; 徐存英; 李坚; 李艳; 周忠仁

doi:10.11949/j.issn.0438-1157.20151264

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Betaine·HCl-6EG-nNiCl₂·6H₂O低共熔离子液体的黏度和电导率

热力学 | 更新时间：2025-12-10

- Betaine·HCl-6EG-nNiCl₂·6H₂O低共熔离子液体的黏度和电导率
- Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl₂·6H₂O deep eutectic ionic liquids
- 化工学报 2016年第4期页码：1090-1097
- 作者机构：
  
  昆明理工大学冶金与能源工程学院复杂有色金属资源清洁利用国家重点实验室,云南,昆明,650093
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151264
  中图分类号： 0645TQ013.1
- 网络首发：2016-04-05，
  
  纸质出版：2016-04-05
- 稿件说明：
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龚凯, 华一新, 徐存英, 等. Betaine·HCl-6EG-nNiCl₂·6H₂O低共熔离子液体的黏度和电导率[J]. 化工学报, 2016,(4):1090-1097. DOI: 10.11949/j.issn.0438-1157.20151264.

GONG Kai, HUA Yixin, XU Cunying, et al. Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl₂·6H₂O deep eutectic ionic liquids[J]. CIESC Journal, 2016, (4): 1090-1097. DOI: 10.11949/j.issn.0438-1157.20151264.
龚凯, 华一新, 徐存英, 等. Betaine·HCl-6EG-nNiCl₂·6H₂O低共熔离子液体的黏度和电导率[J]. 化工学报, 2016,(4):1090-1097. DOI: 10.11949/j.issn.0438-1157.20151264. DOI：

GONG Kai, HUA Yixin, XU Cunying, et al. Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl₂·6H₂O deep eutectic ionic liquids[J]. CIESC Journal, 2016, (4): 1090-1097. DOI: 10.11949/j.issn.0438-1157.20151264. DOI：

摘要

在常压下303~353 K和303~348 K温度范围分别测定了低共熔溶剂盐酸甜菜碱-乙二醇(Betaine·HCl-6EG)中加入不同浓度NiCl2·6H2O形成的Betaine·HCl-6EG-nNiCl2·6H2O低共熔离子液体的黏度和电导率

研究了温度、NiCl2·6H2O浓度对其黏度、电导率的影响规律。结果表明

在所研究的温度和NiCl2·6H2O浓度范围内低共熔离子液体Betaine·HCl-6EG-nNiCl2·6H2O都具有较低的黏度和良好的导电性。随着温度的升高

黏度减小

电导率增大

温度对黏度的影响更显著;黏度、电导率与温度的关系均可以用Arrhenius经验公式描述

由此计算得到其黏滞活化能和电导活化能。随着NiCl2·6H2O浓度的增加

黏滞活化能和电导活化能均会增大;NiCl2·6H2O的加入使得离子液体形成尺寸较大的络合离子

导电离子的有效浓度降低、离子半径增大

导致其电导率减小、黏度增大。

Abstract

The viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl2·6H2O deep eutectic ionic liquids

formed by adding nickel(Ⅱ) chloride hexahydrate (NiCl2·6H2O) into a deep eutectic solvent (DES) composed of Betaine hydrochloride (Betaine·HCl) and Ethylene glycol (EG) in 1:6 molar ratio

were reported at 303—353 K and 303—348 K with an interval of 5 K under atmospheric pressure. The viscosity and electrical conductivity associated with temperature and NiCl2·6H2O concentration were investigated

respectively. The results revealed that within the selected temperature and NiCl2·6H2O concentration ranges

Betaine·HCl-6EG-nNiCl2·6H2O deep eutectic ionic liquids showed low viscosities and good electrical conductivities. With increasing temperature

the viscosities decreased and electrical conductivities increased. The effect of temperature was more significant on viscosity than on electrical conductivity. The dependence of temperature of viscosity and electrical conductivity was found to be greatly described by Arrhenius empirical expressions. According to these expressions

the activation energies for viscous flow and conduction were calculated. With increasing NiCl2·6H2O concentration

the values of the activation energies for viscous flow and conduction increased. Because of the adding NiCl2·6H2O

the formations of the larger size complex ions reduced the concentrations of the effective conductive ions and increased the ionic radius

resulting in increasing viscosity and decreasing electrical conductivity.

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Betaine·HCl-6EG-nNiCl2·6H2O低共熔离子液体的黏度和电导率

Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl2·6H2O deep eutectic ionic liquids

DOI：10.11949/j.issn.0438-1157.20151264

摘要

Abstract

关键词

Keywords

references

Betaine·HCl-6EG-nNiCl₂·6H₂O低共熔离子液体的黏度和电导率

Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl₂·6H₂O deep eutectic ionic liquids