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Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
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相关实验视频

Updated: Jun 8, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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从全固态离子电池中回收固体电解质,通过使用深度性溶剂作为绿色提取剂.

Yu Chen1, Zhuojia Shi1, Xueqing Zhang1

  • 1Department of Chemistry and Material Science, Langfang Normal University, Langfang, Hebei, 065000, P. R. China.

ChemSusChem
|November 8, 2024
PubMed
概括

绿色的深度溶解剂 (DES) 能够有效地从全固态离子电池 (ASSLIB) 中回收固态电解质 (SSE). 这种可持续的方法在温和的温度下提供了高泄漏效率和选择性.

关键词:
化学热力学化学热力学数据驱动的数据驱动.深层欧性溶剂 深层欧性溶剂绿色回收是绿色的回收.离子液体是一种离子液体.物理属性 物理属性

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 绿色化学 绿色化学

背景情况:

  • 全固态离子电池 (ASSLIB) 提供了更高的安全性和能量密度,但也带来了未来的废物挑战.
  • 目前对ASSLIB的回收方法缺乏可持续性,导致资源枯竭和环境问题.
  • 为循环经济发展,为ASSLIBs开发环保和高效的回收过程至关重要.

研究的目的:

  • 调查使用绿色深溶解溶剂 (DESs) 来从ASSLIB中回收固态电解质 (SSEs).
  • 评估使用DESs从ASSLIB中回收的效率,选择性和条件.
  • 探索从水中回收溶解的SSEs的方法.

主要方法:

  • 在温和的温度下从ASSLIB中提取SSE,使用绿色深度环保溶剂 (DES).
  • 在优化条件下量化的泄漏效率和Li/La选择性.
  • 选了各种各样的抗溶剂,以从液中沉SSEs.

主要成果:

  • 使用80°C的DES,达到高达87.5%的漂水效率.
  • 证明了1902年的高Li/La选择性,表明有效的分离.
  • 确定了12种有效的抗溶剂,能够在室温下从液中沉SSEs.

结论:

  • 绿色深层环氧溶剂提供了一种可持续的,具有成本效益的,安全的方法来从ASSLIB中恢复SSE.
  • 这种方法有助于从废旧电池中回收有价值的材料,促进资源循环.
  • 开发的过程为先进的电池技术的环保回收开辟了新的途径.