相关实验视频

Updated: Jun 8, 2025

Ammonia Synthesis at Low Pressure

Ammonia Synthesis at Low Pressure

Published on: August 23, 2017

生物模拟弹性单原子突出增强氨的电合成

Yuntong Sun¹, Yin Huang², Fanglei Yao³

¹School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.

Angewandte Chemie (International ed. in English)

|November 6, 2024

概括

本研究介绍了一种生物仿真电催化剂,通过减少气来实现可持续的氨生成. 新型催化剂设计增强了反应动力学,显著提高了氨产量和效率.

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:

电催化 (N₂) 减少反应 (eNRR) 为氨 (NH₃) 生产提供了一个可持续的途径.
缓慢的反应动力学目前限制了ENRR的效率.

研究的目的:

开发一种新的仿生电催化剂,用于高效的ENRR.
调查用于增强氨合成的拟议催化剂的结构-活性关系.

主要方法:

在氧化瓦纳支 (pSA Mo/VOH) 上设计和合成仿生弹性Mo单原子突出.
现场光谱学和理论计算以阐明反应机制.
对氨产率和法拉第效率进行电化学性能测试.

主要成果:

这种pSA Mo/VOH催化剂具有破坏对称性的Mo位点和弹性的Mo-O₄金字塔.
观察到优化的d电子填充和增强的NN键极化.
取得了优异的NH₃收益率为50.71±1.12 μg h^{-1 mg^{-1和法拉第克效率为35.38±1.03%.}}

结论:

生物模拟弹性结构有效地优化了催化剂对eNRR的电子特性.
动态的Mo-O微环境有助于有效吸附和化中间体.
开发的电催化剂显著优于现有的催化剂,用于可持续的氨生成.

关键词:

生物模拟材料是生物模拟材料.有弹性的单原子突出.电催化剂是一种电催化剂.降解反应是一种降解反应.这是一种破坏对称性的方法.

更多相关视频

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Published on: January 22, 2015

相关概念视频

Inorganic Nitrogen Assimilation

Inorganic Nitrogen Assimilation

Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...

Metabolism of Chemolithotrophs

Metabolism of Chemolithotrophs

Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.

VSEPR Theory and the Effect of Lone Pairs

VSEPR Theory and the Effect of Lone Pairs

Effect of Lone Pairs of Electrons on Molecule Geometry