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

Oscillations about an Equilibrium Position01:04

Oscillations about an Equilibrium Position

5.6K
Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable equilibrium point will cause the object to oscillate around that point. For an unstable equilibrium point, if the object is disturbed slightly, it will not return to the equilibrium point. There are three conditions for equilibrium points—stable, unstable, and half-stable. A half-stable equilibrium point is also unstable, but is named so...
5.6K
Woodward–Hoffmann Selection Rules and Microscopic Reversibility01:34

Woodward–Hoffmann Selection Rules and Microscopic Reversibility

3.3K
Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
3.3K
Oxygenic Photosynthesis01:26

Oxygenic Photosynthesis

203
Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
203
Oxidative Cleavage of Alkenes: Ozonolysis01:46

Oxidative Cleavage of Alkenes: Ozonolysis

11.2K
In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
11.2K
Cooperative Allosteric Transitions01:58

Cooperative Allosteric Transitions

2.6K
2.6K
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

1.1K
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
1.1K

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

Electronic structure-driven sodiophilicity enables stable anode-free sodium batteries.

Science advances·2026
Same author

Topologically Programmed Dual-Channel Covalent Organic Frameworks Decouple Gas and Ion Fluxes for Acidic CO<sub>2</sub> Electroreduction.

Journal of the American Chemical Society·2026
Same author

Unlocking the potential in municipal reclaimed water electrolysis for hydrogen production: Identification of the primary water matrix.

Water research·2026
Same author

Electron-Enriched Ru Nanoclusters Mediating Surface Reconstruction of Phosphide Catalysts for Efficient Water Electrolysis.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Taming the Hydrogen-Mediated Kinetic Switch for Sulfur-Tolerant CO<sub>2</sub> Electroreduction.

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

ac4C modification of PDK4 by NAT10 promotes pulmonary fibrosis by reprogramming mitochondrial dynamics in fibroblasts.

Free radical biology & medicine·2026

相关实验视频

Updated: Sep 16, 2025

Creating Rapid Oxygen Oscillations in Microbial Single-cell Growth Analysis using a Microfluidic Double-layer Device
08:28

Creating Rapid Oxygen Oscillations in Microbial Single-cell Growth Analysis using a Microfluidic Double-layer Device

Published on: July 18, 2025

125

可逆结构振荡介质 稳定的氧气进化反应反应

Qunlei Wen1,2, Tianyang Liu3, Danji Huang2,4

  • 1State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P.R. China.

Angewandte Chemie (International ed. in English)
|July 8, 2025
PubMed
概括
此摘要是机器生成的。

提高电催化剂的耐用性,以获得可持续的能源. 这项研究揭示了氧化演化反应 (OER) 期间铁溶解和重新沉积在铁层双氧化物 (NiFe LDHs) 中如何影响氧化演化反应 (OER) 的稳定性,证明了促进催化剂寿命的联合兴奋剂策略.

关键词:
动态稳定性 动态稳定性有NiFe层的双氧化物.操作的光谱学.氧的演化反应反应的反应.结构振荡的结构性振荡.

更多相关视频

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
12:08

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry

Published on: March 18, 2012

15.3K
Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition
08:31

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Published on: October 3, 2018

8.6K

相关实验视频

Last Updated: Sep 16, 2025

Creating Rapid Oxygen Oscillations in Microbial Single-cell Growth Analysis using a Microfluidic Double-layer Device
08:28

Creating Rapid Oxygen Oscillations in Microbial Single-cell Growth Analysis using a Microfluidic Double-layer Device

Published on: July 18, 2025

125
Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
12:08

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry

Published on: March 18, 2012

15.3K
Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition
08:31

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Published on: October 3, 2018

8.6K

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
  • 催化剂是一种催化剂.

背景情况:

  • 电催化剂的耐用性是可持续电化学应用的主要挑战.
  • 了解活性物种溶解等动态过程对于改善催化剂稳定性至关重要.

研究的目的:

  • 在氧化演化反应 (OER) 过程中调查NiFe LDHs动态稳定背后的原子化机制.
  • 通过联合兴奋剂开发一种提高NiFe LDH耐用性的战略.

主要方法:

  • 操作光谱仪以揭示NiFe LDHs中的结构振荡.
  • 使用硫 (S) 和 (Co) 的概念验证联合兴奋剂策略.
  • 在工业水电解设备中测试改性NiFe LDH.

主要成果:

  • 鉴定了局部[Ni-O2-Fe]单位的结构振荡,这取决于OER期间Fe的溶解和重新配置.
  • S,Co共调振荡,抑制Fe溶解和促进Fe重新沉积,从而提高动态稳定性.
  • 经过修改的NiFe LDH在工业水电解中经过800多小时的稳定运行,实现了低能耗和低成本.

结论:

  • NiFe LDHs的动态稳定性是由局部单位的可逆振荡介导的,受Fe溶解和重新沉积的影响.
  • 联合兴奋剂通过控制这些动态过程,有效地稳定了NiFe LDH,显著提高了OER的耐用性.
  • 这项工作为设计可持续生产的高度稳定的电催化剂提供了一条途径.