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

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.

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

FOLFOX-HAIC plus regorafenib for the treatment of unresectable colorectal liver metastases refractory to first and second-line systemic chemotherapy.

BMC cancer·2026

Same author

Effect of Electric Field on Internal Heat-Flow Characteristics During Evaporation of a Sessile Droplet.

Micromachines·2026

Same author

[Codon usage bias and phylogenetic analysis of chloroplast genomes of 60 <i>Lilium</i> species].

Sheng wu gong cheng xue bao = Chinese journal of biotechnology·2026

Same author

Naturally Elevated Fe and Mn Degrade Groundwater Quality in Changfa Town, Hailun City, Songnen Plain: A Preliminary Hydrogeochemical and Health Risk Assessment.

Toxics·2026

Same author

Integrated Proteomic Profiling of Whole-Cell and Multi-Post-Translational Modifications Unveils Regulatory Networks in Macrophage Inflammatory Responses.

Journal of proteome research·2026

Same author

Facile synthesis of a CuO/CoOOH composite electrocatalyst for efficient glucose electrooxidation.

Chemical communications (Cambridge, England)·2026

Search research articles

相关实验视频

Updated: Jan 7, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

利用微爆炸来快速形成Pd-N单原子催化剂

Xiao Chen¹, Jingsheng Chen¹, Pingxin Wu¹

¹School of Environment and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212100, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|December 19, 2025

概括

一个新的微爆炸合成反应堆 (MER) 能够超快,节能地生产单原子催化剂 (SAC). 这种方法防止金属聚合,产生高度活性和稳定的SACs用于生物质转化.

关键词:

封闭空间燃烧的燃烧方式微爆炸合成微爆炸合成快速热激活的热激活方式一个原子的催化剂.

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

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Published on: June 25, 2018

相关实验视频

Last Updated: Jan 7, 2026

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

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

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Published on: June 25, 2018

科学领域:

催化科学催化科学
材料合成材料合成
纳米技术纳米技术

背景情况:

单原子催化剂 (SAC) 的可扩展和节能合成面临着在热激活过程中高能耗和金属聚合的挑战.
传统方法往往涉及实现原子分散和防止催化剂停用之间的权衡.

研究的目的:

开发一种新的合成方法,用于生产高度分散和稳定的单原子催化剂 (SAC).
研究微爆炸合成反应堆 (MER) 中原子分散和稳定机制.
在相关的催化应用中评估合成SAC的性能.

主要方法:

使用具有微频道的微爆炸合成反应器 (MER) 进行局限空间的乙甲酸前体防火.
采用同步子表征和多尺度模拟来阐明合成机制.
测试了合成的SACs (Pd─N4) 用于化5-氧甲基 (HMF).

主要成果:

在局部超高温度 (>1500 K) 的情况下实现了的超快原子分散 (<20 ms),同时抑制了散热温度 (<200 °C).
确定了三步机制,包括前体升华,非平衡燃烧波和N-协调稳定.
合成的Pd─N4 SAC在HMF化中表现出异常活力和稳定性 (>200小时),性能比纳米粒子催化剂高出2-3个数量级.
MER工艺证明了98%的能源消耗减少,并实现了可扩展,一致的生产.

结论:

MER提供了一个可扩展,节能和可持续的平台,用于制造具有最小碳足迹的SAC.
开发的方法适用于多种金属,为先进的催化剂生产建立了通用方法.
合成的Pd─N4 SACs由于其优异的催化性能,显示出生物质转化应用的巨大潜力.