相关实验视频

Updated: Mar 18, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

使用表面活性离子液体提高基于SiO2的纳米流体稳定性和热物理性质

Elaheh Janbezar¹, Hemayat Shekaari², Mohammed Taghi Zafarani-Moattar¹

¹Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 5166616471, Iran.

|March 17, 2026

概括

表面活性离子液体 (SAIL) 增强了二氧化 (SiO2) 纳米流体的稳定性. 三2-基乙氨酸 (THEA-Ole) 为SiO2纳米颗粒提供了超过60天的优越的长期体稳定性.

科学领域:

材料科学材料科学材料科学
合体和表面化学
纳米技术纳米技术

背景情况:

在二氧化 (SiO2) 纳米流体中实现长期的合稳定性对于其实际应用至关重要.
传统的表面活性剂通常提供有限的稳定性 (少于20天).

研究的目的:

研究特定表面活性离子液 (SAIL) 对水性SiO2纳米粒子分散物的稳定作用.
为了评估 (2-乙烯) 氨基酸盐 (HEA-Ole), bis(2-乙烯) 氨基酸盐 (BHEA-Ole) 和 tris(2-乙烯) 氨基酸盐 (THEA-Ole) 在提高SiO2稳定性的性能.

主要方法:

通过过多的摩尔体积,粘度,密度,动态光散射 (DLS),泽塔潜力,表面张力和60天的视觉观察来评估稳定性.
使用Eyring-mNRF和Eyring-NRTL方程对粘度进行建模.
使用Redlich-Kister,多项式,Ott和PC-SAFT模型的合适密度数据.
使用COSMO结果和PC-SAFT用于平均相对偏差 (ARD%) 的相互作用分析.

主要成果:

三二乙氨酸 (THEA-Ole) 显示出优异的SiO2纳米颗粒稳定性,特别是在临界菌度 (CMC) 以上.
泰油导致了最小的沉积,最佳的分散 (通过DLS) 和高的泽塔潜力.
粘度,多余摩尔体积和表面张力测量表明THEA-Ole纳米流体的趋势稳定.
PC-SAFT建模证实了与THEA-Ole强烈的SiO2相互作用,显示了最低的ARD%.

结论:

THEA-Ole为SiO2纳米流体提供了特殊的合体稳定性,超过60天.
这种SAIL显著优于传统的表面活性剂,解决了扩展应用中纳米流体分散的局限性.
这些发现为在各种技术领域更广泛地利用SiO2纳米流体铺平了道路.

关键词:

结合体稳定性结合体稳定性纳米流体纳米流体氧化 (SiO2) 是一种氧化.表面活性离子液体 (SAIL) 是一种热力学分析热力学分析粘度粘度粘度粘度粘度

更多相关视频

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Published on: April 10, 2017

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Published on: November 14, 2025

相关概念视频

Surface Tension of Fluid

Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...

Surface Active Agents

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...

The Colloidal State

The Colloidal State

The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called...