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

Storage01:23

Storage

369
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
369
Protein-protein Interfaces02:04

Protein-protein Interfaces

14.5K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.5K
Lumber Defects01:23

Lumber Defects

486
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
486
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.6K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.6K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.5K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the involved orbitals. The...
1.5K
ATP Energy Storage and Release01:31

ATP Energy Storage and Release

14.0K
ATP is a highly unstable molecule. Unless quickly used to perform work, ATP spontaneously dissociates into ADP and inorganic phosphate (Pi), and the free energy released during this process is lost as heat. The energy released by ATP hydrolysis is used to perform work inside the cell and depends on a strategy called energy coupling. Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions, allowing them to proceed.
One example of energy coupling using ATP involves a...
14.0K

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

Validation of Random Transgene Integration and Expression in Eimeria Parasites.

Journal of visualized experiments : JoVE·2026
Same author

A novel molecularly imprinted electrochemical cellular sensor for DON detection.

Bioelectrochemistry (Amsterdam, Netherlands)·2026
Same author

Plant-Derived Nitrogen-Doped Carbon Quantum Dots for Selective Cu<sup>2+</sup> Detection and In Vivo Fluorescence Imaging.

Journal of fluorescence·2026
Same author

Extracellular Vesicles in Alzheimer's Disease: Mechanisms, Biomarkers, and Therapeutic Engineering.

International journal of molecular sciences·2026
Same author

3D bioprinting biomimetic small intestinal microtissue-based molecularly imprinted electrochemical sensor for sensitive detection of ovalbumin.

Bioelectrochemistry (Amsterdam, Netherlands)·2026
Same author

Brain Organoids: Emerging Platforms for Modern Neuroscience.

Brain sciences·2026

相关实验视频

Updated: Jan 21, 2026

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients
06:11

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients

Published on: April 18, 2025

1.6K

在CuCo2O4/CuO异构结构中进行界面缺陷合调制,以提高存储性能.

Guoxu Zheng1, Jinjing Zhou1, Roubing Gui1

  • 1School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150080, China.

Langmuir : the ACS journal of surfaces and colloids
|January 20, 2026
PubMed
概括

这项研究开发了CuCo2O4/CuO材料,在泡上有氧空缺,用于改进的离子电池阳极. 这些材料表现出增强的容量和更快的充电由于优化充电转移和离子扩散.

更多相关视频

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
04:57

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

1.0K
The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation
10:41

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

Published on: July 18, 2018

16.1K

相关实验视频

Last Updated: Jan 21, 2026

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients
06:11

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients

Published on: April 18, 2025

1.6K
Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
04:57

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

1.0K
The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation
10:41

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

Published on: July 18, 2018

16.1K

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
  • 纳米技术纳米技术

背景情况:

  • 开发高性能阳极材料对于推进离子电池技术至关重要.
  • 过渡金属氧化物具有潜力,但往往面临的挑战是速度能力和容量保留.
  • 优化材料结构和电子特性是克服这些局限性的关键.

研究的目的:

  • 在泡上制造CuCo2O4/CuO复合材料,以增强氧气空隙度.
  • 研究异质连接接口工程和氧气空位调节对电化学性能的协同效应.
  • 为设计离子电池的先进阳极材料提供实验和理论见解.

主要方法:

  • 材料合成的水热-化协同方法.
  • 在泡基板上制造CuCo2O4/CuO.
  • 电化学测试用于评估容量,速率性能和循环稳定性.
  • 密度函数理论 (DFT) 计算分析电子结构和离子扩散.

主要成果:

  • 合成的CuCo2O4/CuO材料表现出堆叠的集群结构,含有丰富的氧气空缺.
  • 增强的载体丰富和在接口内内置的电场降低了电荷传输阻力.
  • 显著提高了Li+吸附和扩散效率,从而实现了优越的速率性能.
  • 在0.1A g-1的200个循环后,具有1170 mAh g-1的高可逆容量.
  • DFT计算证实了降低带隙和Li+扩散屏障 (0.69 eV).

结论:

  • 协同策略有效地提高了过渡金属氧化物阳极的高容量和快速动力学.
  • 氧气空位工程和异质连接接口设计对于优化阳极材料性能至关重要.
  • 开发的CuCo2O4/CuO材料对下一代离子电池有很大的前景.