Search research articles

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 Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...

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

Gram-to-Ton Synthesis of Single-Atom Materials via Low-Hydroxyl-Coverage Surface Collision.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Molecular-level freezing and melting dynamics of aqueous lithium chloride solutions using in-situ Raman spectroscopy.

Scientific reports·2026

Same author

High-Bandwidth AFM Probes for Imaging in Air and Fluid.

Journal of microelectromechanical systems : a joint IEEE and ASME publication on microstructures, microactuators, microsensors, and microsystems·2026

Same author

Catalytic Waste Valorization Must Move beyond Model Systems.

Environmental science & technology·2026

Same author

Exercise Performance With Aficamten vs Metoprolol in Obstructive Hypertrophic Cardiomyopathy: The MAPLE-HCM Randomized Clinical Trial.

JAMA cardiology·2026

Same author

Left Atrial Reservoir Strain for Predicting Progression to End-Stage in Hypertrophic Cardiomyopathy.

European heart journal. Cardiovascular Imaging·2026

Search research articles

相关实验视频

Updated: Mar 10, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

超高效的非水性太阳能尿素合成在化学环境上 - 编排的Ru

Guanshu Zhao¹, Chengliang Mao², Shuai Yue¹

¹Department of Chemistry, Solar Fuels Group, University of Toronto, Toronto, Ontario, Canada.

Angewandte Chemie (International ed. in English)

|March 9, 2026

概括

研究人员开发了一种新的光热方法,利用阳光,氨和二氧化碳合成尿素. 这种可持续的方法在温和条件下显著提高了生产率,为肥料制造提供了更绿色的替代方案.

关键词:

在CN合器上.化学环境 - 编排的Ru.非水性太阳能尿素合成.光热催化剂的光热催化作用可持续的肥料生产可持续的肥料生产

更多相关视频

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Published on: August 23, 2018

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

相关实验视频

Last Updated: Mar 10, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Published on: August 23, 2018

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

科学领域:

催化剂是一种催化剂.
材料科学材料科学材料科学
可持续化学可持续化学

背景情况:

传统的尿素合成是能源密集型的,依赖于恶劣的条件.
太阳光驱动的催化尿素合成是一种可持续的替代方案,但在分子激活和分离方面面临着挑战.
来自气态反应物的非水性光热合成提供了一个有前途的途径.

研究的目的:

开发一种高效的光热方法,在温和的环境条件下进行尿素合成.
研究催化剂支持酸度在增强尿素合成中的作用.
阐明光热尿素合成的反应机制.

主要方法:

使用在酸性 (Al2O3),基本性 (MgO) 和中性 (SiO2) 材料上支的 (Ru) 纳米晶体进行光热尿素合成.
在模拟阳光下的催化性能的表征.
机械学研究,以了解反应路径和热力学.

主要成果:

获得了2745.71 ± 46.91 μmolurea gRu−1 h−1的最佳尿素合成速率,比以前的方法高出一个数量级.
证明了酸性化学环境在促进反应剂可用性和反应动力学方面的关键作用.
阐明了一条反应途径,涉及Ru的光热启动和热力学上有利的N-H键解离和C-N合.

结论:

在接近环境条件下开发了一种开创性的,超高效的光热尿素合成范式.
成功地绕过了严苛的工业热化学条件的需要.
强调了通过太阳光驱动的催化剂实现可持续化肥生产的潜力.