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

Enthalpy of Solution02:39

Enthalpy of Solution

30.1K
There are two criteria that favor, but do not guarantee, the spontaneous formation of a solution:
30.1K
Solution Formation02:16

Solution Formation

36.9K
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective...
36.9K
General Properties of Solutions02:12

General Properties of Solutions

35.5K
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are composed of varying amounts of two or more types of atoms or molecules. A mixture with a non-uniform composition is a heterogeneous mixture, whereas a mixture with a uniform composition is a homogeneous mixture. The components that make the homogeneous mixture are evenly spread out and thoroughly mixed. 
35.5K
Ideal Solutions02:24

Ideal Solutions

22.3K
According to Raoult’s law, the partial vapor pressure of a solvent in a solution is equal or identical to the vapor pressure of the pure solvent multiplied by its mole fraction in the solution. However, Raoult's Law is only valid for ideal solutions. For a solution to be ideal, the solvent-solute interaction must be just as strong as a solvent-solvent or solute-solute interaction. This suggests that both the solute and the solvent would use the same amount of energy to escape to the...
22.3K
Solution Equilibrium and Saturation01:59

Solution Equilibrium and Saturation

21.6K
Imagine adding a small amount of sugar to a glass of water, stirring until all the sugar has dissolved, and then adding a bit more. You can repeat this process until the sugar concentration of the solution reaches its natural limit, a limit determined primarily by the relative strengths of the solute-solute, solute-solvent, and solvent-solvent attractive forces. You can be certain that you have reached this limit because, no matter how long you stir the solution, undissolved sugar remains. The...
21.6K
Solution Concentration and Dilution02:59

Solution Concentration and Dilution

126.7K
The relative amount of a given solution component is known as its concentration. Often, though not always, a solution contains one component with a concentration that is significantly greater than that of all other components. This component is called the solvent and may be viewed as the medium in which the other components are dispersed or dissolved. Solutions in which water is the solvent are, of course, very common on our planet. A solution in which water is the solvent is called an aqueous...
126.7K

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

(+)-Miliusol suppresses the Warburg effect and induces regulated cell death in triple-negative breast cancer through targeting EIF3D and remodeling cancer metabolism.

Acta pharmaceutica Sinica. B·2026
Same author

Development of Hexaploid Wheat Germplasm with Resistance to Both Powdery Mildew and Stripe Rust by Introgression of <i>Pm60</i> and <i>YrU1</i> from <i>Triticum urartu</i>.

Plants (Basel, Switzerland)·2026
Same author

Rapid Metagenomic Detection of <i>Brucella abortus</i> During a Two-Case Bovine Abortion Investigation in Inner Mongolia, China.

Veterinary sciences·2026
Same author

Different Dimensions of Social Support on Social Media and Leisure-Time Physical Activity Intentions Among Chinese College Students Applying the Theory of Planned Behavior: A Cross-Sectional Study.

JMIR formative research·2026
Same author

Enthalpy-Driven Topological Programming of (TPMS)-Like Carbon Networks.

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

Amplified chiroptic response in a multi-helical penta-perylene structure.

Chemical science·2026
Same journal

On-Cell Detection of Polysaccharide One-Bond <sup>1</sup>J<sub>CH</sub> Couplings by Proton-Detected Solid-State NMR.

Journal of the American Chemical Society·2026
Same journal

Correction to "Unraveling the Effects of Fe Incorporation on High-Performance Water-Splitting Photoanodes".

Journal of the American Chemical Society·2026
Same journal

Proximity-Driven Protein Ligation Beyond the Concentration Limit.

Journal of the American Chemical Society·2026
Same journal

GraPhAI: Neural Networks for Solving Centrosymmetric Crystal Structures.

Journal of the American Chemical Society·2026
Same journal

Probing Stage Transition Kinetics in Li-Graphite Intercalation Compounds by Time-Resolved In Situ Solid-State NMR via <sup>13</sup>C Labeling.

Journal of the American Chemical Society·2026
Same journal

Dynamic Covalent Programming at DNA Base-Pairing Interfaces.

Journal of the American Chemical Society·2026
查看所有相关文章

相关实验视频

Updated: Jan 22, 2026

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
10:19

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Published on: September 27, 2018

10.2K

可溶液加工的超原子薄膜

Jingjing Yang1, Boyuan Zhang1, Alexander D Christodoulides2

  • 1Department of Chemistry , Columbia University , New York , New York 10027 , United States.

Journal of the American Chemical Society
|July 2, 2019
PubMed
概括
此摘要是机器生成的。

研究人员从纳米级集群开发了新的离子超原子材料. 这些无形薄膜具有可调节的特性,如高导电性和透明度,与传统的晶体不同,为先进的电子和热电器件铺平了道路.

更多相关视频

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

10.1K
Preparation of Macroporous Epitaxial Quartz Films on Silicon by Chemical Solution Deposition
07:37

Preparation of Macroporous Epitaxial Quartz Films on Silicon by Chemical Solution Deposition

Published on: December 21, 2015

9.7K

相关实验视频

Last Updated: Jan 22, 2026

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
10:19

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Published on: September 27, 2018

10.2K
Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

10.1K
Preparation of Macroporous Epitaxial Quartz Films on Silicon by Chemical Solution Deposition
07:37

Preparation of Macroporous Epitaxial Quartz Films on Silicon by Chemical Solution Deposition

Published on: December 21, 2015

9.7K

科学领域:

  • 材料科学
  • 纳米技术
  • 固态化学

背景情况:

  • 原子精确的纳米级集群可以通过静电相互作用形成晶体离子固体.
  • 这些集群的结晶成有序结构限制了它们的潜在应用.

研究的目的:

  • 用灵活的侧链研究纳米级集群中的静电相互作用的挫折.
  • 为电子和热电应用开发具有可调节性质的新型无形超原子材料.

主要方法:

  • 合成了长,灵活的侧链以阻止静电相互作用的大纳米级集群.
  • 溶液处理这些集群成无形和均的薄膜.
  • 描述了由此产生的超原子材料的电,热和光学特性.

主要成果:

  • 获得离子超原子材料, 保持无形, 防止结晶.
  • 具有非常高的电导率 (高达300S/m) 的可调配组合.
  • 观察到极低的导热率 (0.05 W/m·K) 和高的光学透明度 (高达92%).
  • 有希望的,未优化的ZT值为0.02的薄膜热电材料.

结论:

  • 通过控制集群间相互作用,可以将离子超原子材料加工成无形薄膜.
  • 这些无形材料表现出在晶体对应物中不存在的独特特性.
  • 超原子薄膜是电子和热电设备的有前途的新材料.