相关实验视频

Updated: Jun 10, 2025

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

异构结构的Ru-Mo₂C纳米颗粒加载在N,P共碳上,以获得pH值的通用进化反应

Yanqiang Li^1,2, Zhuo Zhang¹, Yingying Yao³

¹School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450045, China. lyqncwu@126.com.

Dalton transactions (Cambridge, England : 2003)

|October 14, 2024

概括

我们开发了N,P联合化碳涂层Ru和Mo2C纳米颗粒 (Ru-Mo2C@NPC) 用于高效的进化反应 (HER). 这种新型催化剂在广泛的pH范围内表现出卓越的性能.

科学领域:

材料科学材料科学材料科学
催化剂是一种催化剂.
电化学电化学电化学

背景情况:

(Ru) 和碳化 (Mo₂C) 是已知的演化反应 (HER) 的催化剂.
构建这些材料的异构结构可以通过协同效应来增强催化活性.

研究的目的:

为了合成N,P配碳涂层Ru和Mo2C纳米粒子 (Ru-Mo2C@NPC),以提高HER的性能.
在广泛的pH范围内研究合成材料的催化活性.

主要方法:

合成Ru-Mo₂C@NPC使用ZnMo金属有机框架 (MOF) 前体与基酸.
将RuCl₃固定在ZnMo-MOF上,然后进行热,形成封装的纳米粒子.
材料的形态,组成和催化性能的表征.

主要成果:

合成产生的Ru和Mo2C纳米颗粒被封装在N,P-化碳中,具有保存的纳米碗形态.
Ru-Mo₂C@NPC催化剂表现出优异的HER活性,具有较低的超电位 (62mV在H₂SO₄,64mV在KOH,170mV在PBS在10mA cm^-2).
催化剂的性能归因于Ru和Mo₂C,高表面积和纳米碗结构增强质量转移的协同效应.

结论:

开发的Ru-Mo₂C@NPC催化剂为设计高性能HER电催化剂提供了可行和有效的途径.
纳米碗形态和N,P兴奋剂对增强的催化活性和稳定性做出了重大贡献.
这种方法为推进电催化生产提供了一个有前途的战略.

更多相关视频

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

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Published on: August 17, 2019

相关概念视频

Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.

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...