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

What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

108.8K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
108.8K
Electrochemical Gradient and Channel Proteins: An Overview01:21

Electrochemical Gradient and Channel Proteins: An Overview

1.9K
An electrochemical gradient is a fundamental concept in biology and chemistry. It regulates the movement of ions across cell membranes. This movement is influenced by two factors:
The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell.  This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to...
1.9K
Concentration Cells02:41

Concentration Cells

22.1K
A concentration cell is a type of a  voltaic cell constructed by connecting two almost identical half-cells, both based on the same half-reaction and using the same electrode, differing only in the concentration of one redox species. A concentration cell's potential, therefore, is determined only by the concentration difference of the particular redox species.
Consider the following voltaic cell:
22.1K
Carrier Transport01:21

Carrier Transport

372
The generation of electrical current in semiconductors is fundamentally driven by two mechanisms: drift and diffusion. These processes are essential for the functionality and performance of semiconductor-based devices.
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
372
The Resting Membrane Potential01:21

The Resting Membrane Potential

128.3K
Overview
128.3K
The Role of Ion Channels in Neuronal Computation01:19

The Role of Ion Channels in Neuronal Computation

3.1K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
3.1K

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

Integrated transcriptomic and metabolomic analysis of the toxic effects of PE microplastics on the Kumamoto oyster (Crassostrea sikamea).

Comparative biochemistry and physiology. Toxicology & pharmacology : CBP·2026
Same author

Tailoring Cu d Orbital Electron Density in Nanocrystalline Alloy Au<sub><i>x</i></sub>Cu<sub><i>y</i></sub>-Decorated Si Nanowires for Photoelectrochemical Highly Selective Urea Synthesis.

Nano letters·2026
Same author

Synergistic Effects of Ammonia and Hypoxia Stress on the Transcriptomic Responses of the Razor Clam (<i>Sinonovacula constricta</i>).

Animals : an open access journal from MDPI·2026
Same author

<i>Ferritin</i>, <i>N-Acetylated α-Linked Acidic Dipeptidase 2</i>, and <i>Cytoplasmic Aconitate Hydratase</i> Are Associated with Iron Metabolism and Regulate Iron Content in the Razor Clam, <i>Sinonovacula constricta</i>.

Animals : an open access journal from MDPI·2026
Same author

Delafossite CuFeO<sub>2</sub> photocathodes for photoelectrochemical water splitting: fundamental properties, synthesis, and modification strategies.

Nanoscale·2026
Same author

Enabling multidimensional fine-tuning of large-sized BiOI films using ultrasonic spray pyrolysis.

Nanoscale·2025
Same journal

Removal of Codispersible Residual Impurities from CuInS<sub>2</sub>/ZnS Quantum Dots for Window-Replaceable Luminescent Solar Concentrators.

ACS applied materials & interfaces·2026
Same journal

Durable Core-Shell Scatterer Coating with Heat Storage for Radiative Cooling.

ACS applied materials & interfaces·2026
Same journal

Calix[6]arene-Based Interlocked Inverse Vulcanizate Enabling Network-Interface Cooperative Reinforcement in Natural Rubber/Carbon Black Composites.

ACS applied materials & interfaces·2026
Same journal

Resolving Thermal Accumulation and Rigid-Soft Interface Mismatch in Stretchable Electronics with Cubic Boron Nitride Composite Islands.

ACS applied materials & interfaces·2026
Same journal

Enhancing Conversion Reversibility and Initial Coulombic Efficiency of SnO<sub>2</sub> Anodes via NiO/Ni-Carbon Interfacial Design.

ACS applied materials & interfaces·2026
Same journal

Multidimensional Interface Structure Design for High-Efficiency Optically Controlled Semiconductor Devices: A Case Study on Memristive Synapses.

ACS applied materials & interfaces·2026
查看所有相关文章

相关实验视频

Updated: May 22, 2025

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

11.9K

度梯度驱动在石墨中的快速离子扩散

Bo Yin1,2, Boshi Cheng1, Lin Zhu1

  • 1Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.

ACS applied materials & interfaces
|May 21, 2025
PubMed
概括
此摘要是机器生成的。

一种新的度梯度策略通过在剥落石墨上涂上化碳来增强电池中的离子扩散. 这大大提高了离子电池 (PIB) 的能量密度和性能.

关键词:
度梯度的度梯度是一个趋势.扩散系数 扩散系数能量密度 能量密度离子电池是一种离子电池.利率能力能力的速度.

更多相关视频

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.3K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.4K

相关实验视频

Last Updated: May 22, 2025

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

11.9K
Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

11.3K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.4K

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
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 提高离子电池 (PIB) 的功率密度通常会因为离子扩散的局限性而损害能量密度.
  • 对碳结构的分子级改造在克服这种权衡方面取得了有限的成功.

研究的目的:

  • 提出一种度梯度驱动的离子扩散策略,以提高 PIB 的功率和能量密度.
  • 克服当前GDP技术中能量和功率密度之间的固有权衡.

主要方法:

  • 在去皮石墨 (EG) 上涂上化碳 (NC),以创建高离子度梯度.
  • 研究这种涂层对离子扩散动力学和石墨间化合物形成的影响.
  • 使用优化的EG@NC-200材料组装和测试全细胞.

主要成果:

  • 在插入之前实现了表面离子度的七倍增强.
  • 在瓶阶段,明显的离子扩散系数增加了1000倍.
  • EG@NC-200在1.6 A g-1下提供了134 mAh g-1的功率,显著优于裸体EG (8 mAh g-1).
  • 降低了分别0.02V和1.72V的放电中点电压和电压歇斯底里.
  • 组装完整的电池实现了705Wh kg-1的能量密度.

结论:

  • 度梯度策略有效地增强了石墨中的离子扩散和干动力学.
  • 这种方法成功地解决了GDP中的能量-功率密度权衡.
  • 开发的EG@NC-200材料对高性能离子电池应用有很大的前景.