相关实验视频
Updated: Jun 24, 2025

06:15
Preparation of Binary and Ternary Deep Eutectic Systems
Published on: October 31, 2019
11.9K
化物离子在最大限度地提高深性溶剂的电化学稳定性方面的未开发潜力
Desiree Mae Prado1, Clemens Burda1
1Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States.
The journal of physical chemistry letters
|June 10, 2024
概括
研究人员探索了一种用于先进电池的新型非水性电解质. 这种由胆化和乙烯糖醇制成的深度环氧溶剂,对未来的储能系统显示出有前途的稳定性.
科学领域:
- 电化学和材料科学 材料科学
- 先进的电池技术 电池技术
背景情况:
- 电解质稳定性对于储能系统的寿命和性能至关重要,特别是氧化还原流电池 (RFB).
- 水性电解质具有有限的电化学稳定性窗口 (E_SW),导致和氧演变等问题.
- 非水性电解质提供了增强的稳定性,对于可靠的电池运行至关重要.
研究的目的:
- 为了研究一种由胆化物和乙烯糖醇组成的新型非水性深溶剂 (DES) 的电化学稳定性窗口 (E_SW).
- 了解盐的化物成分的变化如何影响DES电解质的稳定性.
- 探索这种新型DES作为下一代电池稳定的电解质的潜力.
主要方法:
- 基于胆化物和乙烯糖醇的DES的E_SW的实验研究.
- 减少和氧化潜能极限的分析.
- 在氨盐中化物成分的系统变化,以研究其对DES稳定性的影响.
主要成果:
- 该研究成功地确定了以前未被调查的非水性DES的E_SW.
- 结果表明,DES的稳定性窗口和潜在极限受氨盐的化物组成的影响.
- 与传统的水性电解质相比,新型DES表现出增强的稳定性.
结论:
- 这项研究突出了在电池电解质中使用新型深度环氧溶剂的显著好处.
- 具有特征的胆化和乙烯糖醇DES为先进的储能应用提供了一个有前途的候选人.
- 这项工作为未来电池设计中DES的战略开发和实施提供了基础.
相关概念视频
Solubility Equilibria: Overview
656
When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
Solubility is important in biological and environmental processes. A notable...
656
Formation of Complex Ions
23.6K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.6K
Solvating Effects
7.4K
An understanding of the solvating effect helps rationalize the relation between solvation and acidity of the compound. In addition, this also explains the relative stability of conjugate bases for compounds with different pKa values. This lesson details, in-depth, the principle of solvating effects. The strength of an acid and the stability of its corresponding conjugate base are determined using pKa values. This observed relationship is a consequence of solvation, which is the interaction...
7.4K
Ionic Strength: Effects on Chemical Equilibria
1.4K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
In this solution, the primary...
1.4K
Electrolytes: van't Hoff Factor
33.1K
Colligative Properties of Electrolytes
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
33.1K
Ionic Bonding and Electron Transfer
41.4K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
41.4K

