在CuSb多孔纳米网络中具有独特的p-d轨道杂交,用于增强酸盐电还原到氨的酸盐电还原
Min Yan1, Ranran Wei1, Ruifan Zhang1
1College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|March 13, 2024
概括
研究人员开发了一种新的缺陷丰富的铜- (CuSb) 孔隙纳米网络催化剂,用于电化学化物减少. 这种催化剂实现了高氨产量和效率,提供了可持续的氨合成途径.
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:
- 电化学化物减少是氨合成的一个有前途的绿色技术.
- 开发高效和稳定的电催化剂对于这一过程至关重要.
研究的目的:
- 使用p-d轨道杂交策略制造一个含有缺陷的CuSb多孔纳米网络 (CuSb PNs) 电催化剂.
- 为了研究CuSb PNs用于电化学化物减少的性能.
主要方法:
- 制造具有晶体/形态异相结构的CuSb PNs.
- 化物还原催化剂的电化学表征.
- 实验和理论研究,以了解催化机制.
主要成果:
- 在CuSb PNs中,NH3产量高达946.1μg h-1.1.
- 在生产氨方面实现了90.7%的高法拉第效率 (FE).
- 富有缺陷的多孔结构和Cu和Sb的p-d杂交有助于提高性能.
结论:
- 开发的CuSb PNs显示出优秀的电催化活性,用于将化物减少为氨.
- 该p-d轨道杂交和缺陷丰富的多孔纳米网结构是催化剂性能的关键.
- 这项工作提出了一个可行的策略,用于设计先进的催化剂,用于可持续的氨合成和解决氧化污染问题.
更多相关视频
08:18Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
1.7K
13:56Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
7.6K
相关概念视频
Valence Bond Theory
8.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.5K
Hybridization of Atomic Orbitals I
47.1K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
47.1K
Hybridization of Atomic Orbitals II
32.2K
sp3d and sp3d 2 Hybridization
32.2K
The Aufbau Principle and Hund's Rule
48.3K
To determine the electron configuration for any particular atom, we can build the structures in the order of atomic numbers. Beginning with hydrogen, and continuing across the periods of the periodic table, we add one proton at a time to the nucleus and one electron to the proper subshell until we have described the electron configurations of all the elements. This procedure is called the aufbau principle, from the German word aufbau (“to build up”). Each added electron occupies the...
48.3K
Valence Bond Theory and Hybridized Orbitals
19.3K
According to valence bond theory, a covalent bond results when: (1) an orbital on one atom overlaps an orbital on a second atom, and (2) the single electrons in each orbital combine to form an electron pair. The strength of a covalent bond depends on the extent of overlap of the orbitals involved. Maximum overlap is possible when the orbitals overlap on a direct line between the two nuclei.
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
19.3K
