Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

745
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
745
EDTA: Chemistry and Properties01:22

EDTA: Chemistry and Properties

2.4K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
2.4K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

577
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...
577
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

22.3K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
22.3K
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

1.4K
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
1.4K
Formation of Complex Ions03:45

Formation of Complex Ions

24.4K
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...
24.4K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Interfacial stabilization enabled by triethyl borate for high-voltage batteries with a wide temperature range.

Materials horizons·2026
Same author

Ultra-Sodiophilic Mixed Conductor Interphase Enabling Uniform Top Deposition for Quasi-Solid-State Sodium-Metal Batteries.

Nano-micro letters·2026
Same author

Mitigating Electrode Stress via Self-Constructed Interfacial Carrier Networks in High-Areal-Capacity SiO<sub><i>x</i></sub> Anodes.

Journal of the American Chemical Society·2026
Same author

Interfacial Engineering of Dry-Processed High-Loading LiNi<b><sub>0.5</sub></b>Mn<b><sub>1.5</sub></b>O<b><sub>4</sub></b> Cathodes: Additive Dissolution and Bilayer Cathode-Electrolyte Interphase toward Stable High-Voltage Lithium Metal Batteries.

ACS applied materials & interfaces·2026
Same author

Dielectric-Mediated Solvation Chemistry Unlock Ah-Level Nail-Penetration-Resistant TiNb<sub>2</sub>O<sub>7</sub> Pouch Cells Operating at -60°C.

Angewandte Chemie (International ed. in English)·2026
Same author

Nanoheterocrystal Catalysts Designed by Multiple Reactivity Descriptors for Accelerated Redox Kinetics in Li-S Batteries.

ACS nano·2026

Video Experimental Relacionado

Updated: Oct 17, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.8K

Electrolitos quelados para iones metálicos divalentes

Pengjian Zuo1, Geping Yin1

  • 1MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.

Science (New York, N.Y.)
|October 7, 2021
PubMed
Resumen

Los electrolitos quelatantes reestructuran la disolución iónica, allanando el camino para baterías de magnesio eficientes y reversibles. Este avance mejora el rendimiento de las soluciones de almacenamiento de energía de próxima generación.

Más Videos Relacionados

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

9.4K
Dynamic Electrochemical Measurement of Chloride Ions
07:32

Dynamic Electrochemical Measurement of Chloride Ions

Published on: February 5, 2016

11.6K

Videos de Experimentos Relacionados

Last Updated: Oct 17, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.8K
Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

9.4K
Dynamic Electrochemical Measurement of Chloride Ions
07:32

Dynamic Electrochemical Measurement of Chloride Ions

Published on: February 5, 2016

11.6K

Área de la Ciencia:

  • La electroquímica
  • Ciencias de los materiales
  • Almacenamiento de energía

Sus antecedentes:

  • Las baterías de magnesio ofrecen una alta densidad de energía teórica, pero se enfrentan a desafíos con el ciclo reversible.
  • La disolución de iones en electrolitos tiene un impacto significativo en el rendimiento y la estabilidad de la batería.

Objetivo del estudio:

  • Para investigar el papel de los electrolitos quelantes en el rendimiento de la batería de magnesio.
  • Para demostrar la viabilidad de la deposición de magnesio reversible y la eliminación.

Principales métodos:

  • Caracterización electroquímica de los electrolitos de iones de magnesio.
  • Análisis espectroscópico in situ de las capas de solvación iónica.
  • Evaluación del rendimiento en ciclo de las celdas de la batería de magnesio.

Principales resultados:

  • Se demostró que los electrolitos quelantes reorganizan efectivamente la estructura de solvación de los iones de magnesio.
  • Se logró la deposición y desmontaje reversibles de magnesio con una alta eficiencia coulombina.
  • Se observó una mejor estabilidad de ciclo y capacidad de velocidad de las baterías de magnesio.

Conclusiones:

  • Los electrolitos quelatantes son una estrategia prometedora para habilitar baterías de magnesio reversibles de alto rendimiento.
  • Comprender y controlar la solución iónica es fundamental para el avance de la tecnología de la batería de magnesio.