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

Nuclear Overhauser Enhancement (NOE)01:07

Nuclear Overhauser Enhancement (NOE)

618
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling.  This phenomenon, called the Nuclear Overhauser Enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring...
618
Metallic Solids02:37

Metallic Solids

18.2K
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....
18.2K
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

9.5K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
9.5K

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

A High-Fidelity Molecular Model of the Cu(111) Repeating Unit.

Journal of the American Chemical Society·2026
Same author

Synthesis and electronic structure elucidation of bioinspired heterobimetallic nickel complexes.

Chemical communications (Cambridge, England)·2025
Same author

A Molecular Tricopper Phosphide: Synthesis, Functionalization, and Hydrogen Atom Abstraction.

Journal of the American Chemical Society·2025
Same author

A dinuclear nickel peroxycarbonate complex: CO<sub>2</sub> addition promotes H<sub>2</sub>O<sub>2</sub> release.

Chemical communications (Cambridge, England)·2024
Same author

Mechanistic insights into radical formation and functionalization in copper/<i>N</i>-fluorobenzenesulfonimide radical-relay reactions.

Chemical science·2024
Same author

Accessing Ta/Cu Architectures via Metal-Metal Salt Metatheses: Heterobimetallic C-H Bond Activation Affords μ-Hydrides.

Angewandte Chemie (International ed. in English)·2023

相关实验视频

Updated: May 29, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.6K

类似表面的NOx在一个原子精确的三铜集群的减少.

Andrew W Beamer1, Joshua A Buss1

  • 1Willard Henry Dow Laboratory, Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI, 48109, USA.

Angewandte Chemie (International ed. in English)
|February 7, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种新的铜催化剂集群,用于氧化 (NOx) 整治. 这个集群有效地将NOx污染物转化为气 (N2),为环境清洁提供了一个有希望的解决方案.

关键词:
没有NOxRRR.催化剂是一种催化剂.铜铜 铜铜的铜.减少酸盐的减少氧原子转移 (OAT) 是指氧原子的转移.

更多相关视频

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.1K
In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

18.1K

相关实验视频

Last Updated: May 29, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.6K
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.1K
In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

18.1K

科学领域:

  • 催化剂是一种催化剂.
  • 环境化学环境化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 燃烧和肥料增加了环境中的氧化 (NOx).
  • 铜催化剂对NOx补救有希望,但反应机制尚不清楚.
  • 了解基本步骤对于设计高效的催化剂至关重要.

研究的目的:

  • 为减少NOx准备和描述一种新的铜集群.
  • 阐明氧化转化为气的催化机制.
  • 在分子水平上绘制完整的脱循环图.

主要方法:

  • 一个分子三角形μ3-oxo复合物的合成.
  • 制备一个缩小的,类似表面的铜集群.
  • 使用光谱学和电子结构计算进行表征.
  • 对于NOx还原性合和酸盐/酸盐的还原的催化研究.

主要成果:

  • 合成了一种具有 σ-芳香度的高度反应性,表面状的铜集群 (2).
  • 集群2有效催化了通过N2O将NO与N2的还原性合.
  • 连续的氧原子转移步骤被确定为关键机制.
  • 绘制了完整的脱循环,包括对NO3和NO2的刻度减排.

结论:

  • 新的铜集群为NOx修复机制提供了洞察力.
  • 铜芯中的 σ-芳香性促进了二电子化学用于脱.
  • 这种原子精确的集群使我们能够全面了解催化循环.