Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

391
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
391
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

513
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
513
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

1.4K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
1.4K
Electrodeposition01:08

Electrodeposition

719
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...
719
Electrostatic Boundary Conditions01:16

Electrostatic Boundary Conditions

608
Consider an external electric field propagating through a homogeneous medium. When the electric field crosses the surface boundary of the medium, it undergoes a discontinuity. The electric field can be resolved into normal and tangential components. The amount by which the field changes at any boundary is given by the difference between the field components above and below the surface boundary.
The surface integral of an electric field is given by Gauss's law in integral form and is related to...
608

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

<i>In Situ</i> Construct of Zn-In Alloy Layer by In(BF<sub>4</sub>)<sub>3</sub> Additive to Stabilize Zn Anode and Realize Ultra-High Reversible Zinc-Air Batteries.

Journal of the American Chemical Society·2026
Same author

The Selective Routing of Plasmonic Interface Charge Transfer in Enhanced Raman Spectroscopy or Chemical Reaction.

Journal of the American Chemical Society·2026
Same author

Water-Mediated Ion Selectivity in 2D MXene Channels.

Journal of the American Chemical Society·2026
Same author

Correction to "Less is More: Can Low Quantum Capacitance Boost Capacitive Energy Storage?"

The journal of physical chemistry letters·2026
Same author

Electrothermal vacuum sublimation drying of graphene aerogels for high-temperature synthesis.

Nature communications·2026
Same author

AirNet: A Deep Learning-Driven Auto Baseline Correction Algorithm Balancing Global Smoothness and Local Fidelity.

Analytical chemistry·2026

相关实验视频

Updated: Sep 13, 2025

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
09:20

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction

Published on: January 26, 2016

15.5K

揭示通过金属/电解质接口的安格斯特罗姆尺度接口电子溢出

Jun Yi1,2, Yue-Jiao Zhang1, Yi-Fan Huang3

  • 1School of Electronic Science and Engineering, The State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry & Chemical Engineering, College of Energy, Fujian Key Laboratory of Ultrafast Laser Technology and Applications, Xiamen University, Xiamen 361005, P. R. China.

Journal of the American Chemical Society
|August 1, 2025
PubMed
概括

我们用电化学等离子增强拉曼光谱 (PERS) 和等离子分子统治器对电极-电解质接口的电子溢出进行了可视化. 这种技术实现了斯特罗姆尺度分辨率,揭示了高达4 Å的溢出长度.

更多相关视频

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
11:03

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy

Published on: July 14, 2022

3.6K
Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

12.9K

相关实验视频

Last Updated: Sep 13, 2025

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
09:20

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction

Published on: January 26, 2016

15.5K
Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
11:03

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy

Published on: July 14, 2022

3.6K
Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

12.9K

科学领域:

  • 电化学
  • 表面科学
  • 光谱学

背景情况:

  • 了解固体-液体界面电子溢出是异质反应和催化过程的关键.
  • 目前关于界面电子溢出的影响的知识缺乏安格斯特罗姆尺度的实验细节,主要是概念性的.

研究的目的:

  • 用安格斯特罗姆尺度分辨率实验证明和量化电极-电解质接口的接口电子溢出.
  • 使用等离子分子统治器策略将电子溢出与分子反应相关联.

主要方法:

  • 结合在位电化学等离子增强拉曼光谱 (PERS) 与等离子分子规则策略.
  • 使用在金属电极 (Pt,Pd,Au,Ag) 上吸附的分子作为探测电子溢出的分子规则.
  • 函数组的相关PERS带转移到电子溢出,实现斯特罗姆尺度的空间分辨率.

主要成果:

  • 在电极-电解质接口成功证明和量化了接口电子溢出.
  • 在Ag电极与有机电解质接口观察到的电子溢出长度高达4 Å.
  • 发现电子溢出长度高度依赖于应用的电位,电极金属和电解质组成.

结论:

  • 提供了第一个对金属液体界面的安格斯特罗姆尺度电子行为的定量测量.
  • 这些发现为在电化学极化下定制金属特性提供了指导.
  • 开启了对量子等离子学进行活跃控制的可能性,