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

Electrodeposition01:08

Electrodeposition

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...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential ensures...
Processes at Electrodes01:30

Processes at Electrodes

The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...
Types of Reversible Electrodes01:24

Types of Reversible Electrodes

For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
EDTA: Indirect and Alkalimetric Titration01:23

EDTA: Indirect and Alkalimetric Titration

Unlike direct titration, back-titration, and displacement titration, indirect titration is an EDTA titration method for quantifying anions. In the indirect titration method, anions are precipitated as their insoluble salts with excess metal ions. The filtrate containing the excess metal ions is directly titrated with standard EDTA until the endpoint is achieved. Another approach involves extracting the metal ion and back-titrating with standard EDTA to obtain the endpoint. In this way, the...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Microglial brain-derived neurotrophic factor (BDNF) supports the behavioral and synaptogenic effects of ketamine.

Brain, behavior, and immunity·2026
Same author

Correction to "Unraveling the Effects of Fe Incorporation on High-Performance Water-Splitting Photoanodes".

Journal of the American Chemical Society·2026
Same author

Photoelectrochemical Valorization of Plastic Waste Using Catalytic Silicon Photoanodes.

ChemSusChem·2026
Same author

Silicon-supported 2D conductive metal-organic framework nanorod arrays for alkaline water and urea electrooxidation.

Chemical communications (Cambridge, England)·2026
Same author

Imaging the reactivity of carbon nitride nanosheets by photoinduced cathodic electrochemiluminescence microscopy.

Chemical communications (Cambridge, England)·2026
Same author

Synthesis of Patchy Particles at Phase Boundaries.

Small methods·2026
Same journal

Decoding Galectin-Glycan Recognition with <sup>19</sup>F-Tagged Lectins: from Simple Glycans to the Cellular Glycocalyx.

Journal of the American Chemical Society·2026
Same journal

Open- and Closed-Shell Roles of Sensitizer and Annihilator in Pseudo-Single Component Mixtures for Upconversion.

Journal of the American Chemical Society·2026
Same journal

Pressure-Induced Superconductivity at 15 K in van-der-Waals Ferroelectric CuInP<sub>2</sub>S<sub>6</sub>.

Journal of the American Chemical Society·2026
Same journal

Carbene Analogues of Group 15: Reduction of s-Hydrindacene-Based Chloropnictogenium Ions To Access an Antimony Hydride Monocation and a Trinuclear Bismuth Dication.

Journal of the American Chemical Society·2026
Same journal

Chiral-Ligand-Modulated Nickel-Catalyzed Stereoselective Radical Migratory C2-Arylation of Carbohydrates.

Journal of the American Chemical Society·2026
Same journal

Coordination-Constraint-Driven Enhanced Chirality Induction in Perovskite Quantum Dot Solids.

Journal of the American Chemical Society·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: May 16, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

La electrodeposición bipolar indirecta es una electrodeposición bipolar indirecta.

Gabriel Loget1, Jérome Roche, Eugenio Gianessi

  • 1Université de Bordeaux, ISM, UMR5255, F-33400 Talence, France.

Journal of the American Chemical Society
|November 29, 2012
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores crearon partículas de Janus utilizando electroquímica bipolar para generar gradientes de pH localizados. Este método permite la deposición selectiva de materiales, allanando el camino para la nueva síntesis de objetos bifuncionales.

Más Videos Relacionados

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

Videos de Experimentos Relacionados

Last Updated: May 16, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

Área de la Ciencia:

  • La electroquímica es electroquímica.
  • Ciencia de los materiales Ciencia de los materiales.
  • Nanotecnología La nanotecnología es la nanotecnología.

Sus antecedentes:

  • Los principios de la electroquímica bipolar permiten la generación de un gradiente de pH localizado en las superficies de las partículas conductoras.
  • La precipitación desencadenada por el pH permite la deposición selectiva de capas de polímeros inorgánicos y orgánicos.
  • La ruptura de simetría en este proceso facilita la generación directa de partículas de Janus.

Objetivo del estudio:

  • Demostrar un nuevo método para sintetizar partículas de Janus utilizando electroquímica bipolar.
  • Para explorar la deposición topo-selectiva de diversos materiales en las partículas conductoras.
  • Para permitir la creación de objetos bifuncionales con formas controladas para diversas aplicaciones.

Principales métodos:

  • Utilizando la electroquímica bipolar para crear gradientes de pH localizados alrededor de las partículas conductoras en solución.
  • Utilizando precipitación desencadenada por pH para la deposición controlada de capas de polímeros inorgánicos (por ejemplo, SiO2, TiO2) y orgánicos.
  • Aprovechando la electrodeposición indirecta para crear partículas de Janus con modificaciones específicas de la superficie.

Principales resultados:

  • Generó con éxito partículas de Janus con distintas composiciones superficiales.
  • Demostró la capacidad de depositar materiales como SiO2, TiO2 y pinturas electroforéticas en las partículas.
  • Mostró el potencial de estos depósitos como matrices de inmovilización para tintes y nanopartículas.

Conclusiones:

  • La electroquímica bipolar ofrece una plataforma versátil para la deposición de material toposelectivo y la síntesis de partículas de Janus.
  • El método desarrollado proporciona una ruta directa a objetos bifuncionales con propiedades sintonizables.
  • Este enfoque tiene una promesa significativa para la síntesis de materiales avanzados y aplicaciones en nanotecnología.