Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl<sub>2</sub>·6H<sub>2</sub>O deep eutectic ionic liquids

GONG Kai; HUA Yixin; XU Cunying; LI Jian; LI Yan; ZHOU Zhongren

doi:10.11949/j.issn.0438-1157.20151264

您当前的位置：

首页 >

文章列表页 >

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

更新时间：2025-12-10

- Viscosity and electrical conductivity of Betaine·HCl-6EG-nNiCl₂·6H₂O deep eutectic ionic liquids
- CIESC Journal Issue 4, Pages: 1090-1097(2016)
- 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
  CLC： 0645TQ013.1
- Online First：05 April 2016，
  
  Published：05 April 2016
- 稿件说明：
移动端阅览
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：

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.

关键词

Keywords

references

Views

275

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Absorption performance and stratification mechanism of biphasic CO2 absorbent[Bmim] [BF4]/MEA aqueous mixtures

Vapor liquid equilibria and heat of desorption of CO2 in aqueous mixture of[Bmim] [BF4] and MEA

CO2/N2 separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs

Application of choline-based deep eutectic solvents in CO2 capture and separation

CO2 absorption properties of supported [APMIm][Br]

Related Author

XU Lingjun

QI Yang

WANG Shujuan

FAN Tengteng

XIE Wenlong

ZHANG Suoying

LIU Chang

FENG Xin

Related Institution

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Engineering Research Center for Ecological Restoration and Carbon Fixation of Saline-Alkaline and Desert Land, Department of Energy and Power Engineering, Tsinghua University

CSIRO Manufacturing, Clayton

State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University

Feymer Membrane Technology Co

Hengtong Optical Material Co

⁰

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

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