相关实验视频

Updated: Jun 22, 2025

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

具有CoCorrole功能的PCN-222用于一氧化碳选择性吸附

Margerie Loze¹, Stéphane Brandès¹, Paul Fleurat-Lessard¹

¹Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB, UMR CNRS 6302, Université de Bourgogne, 9, Avenue Alain Savary, BP 47870, 21078, Dijon Cedex, France.

Chemistry (Weinheim an der Bergstrasse, Germany)

|July 4, 2024

概括

这项研究引入了用于高度选择性一氧化碳 (CO) 检测的新型玉环植入MOF材料. 这些先进的传感器通过在低度下有效地结合CO,提供了改进的室内空气质量监测.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

一氧化碳 (CO) 中毒风险需要有效的室内空气质量监测系统.
科巴尔特珊瑚复合物显示出对其他气体如O2,CO2和N2的选择性CO结合.
金属有机框架 (MOF) 具有高的气体吸附能力,使其成为传感应用的前景.

研究的目的:

开发高性能传感材料用于CO检测,通过将玉和MOF相结合.
创建能够同时检测CO和CO2的材料.
使用PCN-222,一个稳定的基于Zr的MOF,作为接种电子贫困金属合金的矩阵.

主要方法:

在PCN-222 MOF矩阵上将电子贫富的金属合金接种.
使用粉末X射线衍射 (XRD),SEM,光学显微镜和BET分析进行表征.
在298K的气体吸附测量以评估CO吸收和选择性.

主要成果:

在移植后,PCN-222的晶体结构保持完整.
合成的材料 (CoCorr2@PCN-222和CoCorr3@PCN-222) 显示了显著的CO吸附体积 (12.15和14.01厘米3/g).
在低压下观察到高选择性对CO化学吸收超过O2,N2和CO2物理吸收.

结论:

合金冠状植入的MOF是用于选择性CO检测的有效材料.
这些材料具有出色的二氧化碳化学吸收特性和选择性,对于开发先进的二氧化碳预警系统至关重要.
MOF矩阵支持功能性角质单元,使灵敏和选择性气体传感成为可能.

关键词:

二氧化碳是二氧化碳中的一种.一氧化碳的一氧化碳.科巴尔特的核心元素是.气体检测气体检测气体检测金属有机框架的框架.可逆吸附是一种可逆的吸附.

更多相关视频

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

Published on: February 1, 2020

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

相关概念视频

Regioselectivity of Electrophilic Additions-Peroxide Effect

Regioselectivity of Electrophilic Additions-Peroxide Effect

In the presence of organic peroxides, the addition of hydrogen bromide to an alkene yields the isomer that is not predicted by Markovnikov’s rule. For example, the addition of hydrogen bromide to 2-methylpropene in the presence of peroxides gives 1-bromo-2-methylpropane. This addition reaction proceeds via a free radical mechanism, which reverses the regioselectivity. The free radical reaction mechanism involves three stages: initiation, propagation, and termination.

Analyte Adsorption and Distribution

Analyte Adsorption and Distribution

In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...