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

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.1K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.1K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.1K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.3K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.3K
Metallic Solids02:37

Metallic Solids

20.7K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.7K
Ionic Radii03:10

Ionic Radii

33.6K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.6K
Ionic Bonds00:42

Ionic Bonds

131.1K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
131.1K

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

Epidemiological characteristics and importation patterns of imported dengue fever in southwest border regions of China.

PLoS neglected tropical diseases·2026
Same author

Resolving intrinsic dislocation structure in perovskite crystals using pulsed electron beam with atomic resolution.

Nature communications·2026
Same author

Improved early response assessment of chemoimmunotherapy efficacy by <sup>68</sup>Ga-grazytracer PET/CT in non-small cell lung cancer: a comparison of bronchial arterial versus intravenous chemotherapy.

European journal of nuclear medicine and molecular imaging·2026
Same author

Air Instability-Induced Mechanical Degradation Plaguing Cyclability of Polycrystalline Nickel-Rich Layered Cathode.

Journal of the American Chemical Society·2026
Same author

Carbon mesopore depth engineering boosts the performance of low-platinum fuel cells.

Nature communications·2026
Same author

Interlocked Interface Enhances Mechanical Integrity for Thermal-Cycling-Stable Perovskite Solar Cells With 26.82% Certified Efficiency.

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

A Droplet-Microarray Platform for Multiplex Profiling of Breast Cancer Exosome Subtypes in Patients' Blood Plasma Samples.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Material-Dependent Functionalization of CVD-Grown TMDC Monolayers Probed by Vibrational Nanospectroscopy.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

BandGap Modulated Charge Gating of Semiconductor Coatings Stabilizes Zinc Metal Anodes.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

For High Capacity: Upcycling of Spent Graphite Catalytic via Precisely Tailoring Water-Gas Reaction.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Electronic Engineering of Donor-Acceptor Covalent Organic Frameworks via Fluorine Substitution for Efficient Solar Hydrogen Production.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Correction to: "A Gold Nanocage/Cluster Hybrid Structure for Whole-Body Multispectral Optoacoustic Tomography Imaging, EGFR Inhibitor Delivery, and Photothermal Therapy".

Small (Weinheim an der Bergstrasse, Germany)·2026
查看所有相关文章

相关实验视频

Updated: Feb 6, 2026

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
15:08

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells

Published on: September 20, 2012

16.5K

高温Ni-扩散困扰固体氧化物细胞的离子导电性

Jiakun Sun1,2, Hengbo Yin1,2, Yan Li1,2,3

  • 1State Key Laboratory of Materials Low-Carbon Recycling, College of Materials Science & Engineering, Beijing University of Technology, Beijing, China.

Small (Weinheim an der Bergstrasse, Germany)
|February 5, 2026
PubMed
概括
此摘要是机器生成的。

在固体氧化物细胞制造过程中分离显著阻碍了离子导电性,因为它阻断了YSZ粒边界的氧化物离子扩散. 缓解这种分离会使离子导电率增加一倍,从而提高细胞性能.

关键词:
没有隔离,没有隔离.燃料电极的电极是燃料电极.谷物界限 谷物界限 谷物界限空间电荷层空间电荷层超快速的高温烧结方式

更多相关视频

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems

Published on: May 26, 2019

7.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.5K

相关实验视频

Last Updated: Feb 6, 2026

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
15:08

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells

Published on: September 20, 2012

16.5K
Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems

Published on: May 26, 2019

7.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.5K

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
  • 陶制品 在陶方面.

背景情况:

  • 在工作温度 (∼750°C) 的 (Ni) 扩散会降解固体氧化物细胞 (SOC).
  • 高温制造工艺 (∼1400°C) 可以加剧与Ni相关的问题.
  • 了解制造过程中的Ni行为对于SOC的寿命至关重要.

研究的目的:

  • 调查 SOC 制造过程中 Ni 扩散对 yttria 稳定 (YSZ) 颗粒边界 (GB) 的影响.
  • 量化离子分离对氧化物离子导电性的影响.
  • 探索减轻Ni分离和提高SOC性能的方法.

主要方法:

  • 电化学测试以评估离子导电性.
  • 先进的电子显微镜来分析YSZ GBs的Ni分离.
  • 超快的高温烧结用于减轻.

主要成果:

  • 在制造过程中在YSZ GBs中离子分离率高达≤7at.%,严重降低了氧化物离子导电性.
  • 增加的Ni缩使空间电荷层变厚,并提高空间电荷潜力,阻碍离子扩散.
  • 通过超快速烧结进行缓解,在700°C时离子导电率翻了一番.

结论:

  • 在YSZ GBs的Ni分离显著降低了SOCs中的离子导电性.
  • 缓解Ni分离提供了一种降低欧姆电阻和提高SOC性能的新策略.