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Updated: Jun 16, 2026

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

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High Temperature Absorption in CO(2) at 10.6 microm.

A R Strilchuk, A A Offenberger

|February 6, 2010

Summary

This summary is machine-generated.

This study measured the temperature-dependent absorption of carbon dioxide (CO2) gas using laser spectroscopy. Results were compared to theoretical models, improving understanding of gas absorption properties.

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

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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

Area of Science:

Spectroscopy
Gas-phase chemistry
Thermodynamics

Background:

Understanding the absorption properties of gases like carbon dioxide (CO2) is crucial for various applications, including atmospheric science and combustion analysis.
Previous models may not fully capture the temperature-dependent behavior of CO2 absorption, especially under high-temperature conditions.

Purpose of the Study:

To experimentally determine the temperature variation of the resonant absorption coefficient in shock-heated CO2 gas.
To compare experimental findings with theoretical predictions, incorporating mixed mode contributions and temperature-dependent optical broadening.

Main Methods:

Utilizing laser spectroscopy with a source operating on specific transitions (P(20) or P(18)).
Employing shock heating techniques to achieve gas temperatures ranging from 350 K to 1600 K.
Analyzing resonant absorption coefficients and comparing them against theoretical models.

Main Results:

Reported measurements of the temperature variation of the resonant absorption coefficient for CO2 gas.
Observed discrepancies or agreements between experimental data and theoretical models, particularly concerning mixed mode contributions.
Quantified the dependence of the optical broadening cross section on temperature.

Conclusions:

The study provides valuable experimental data for validating and refining theoretical models of CO2 absorption.
Findings contribute to a more accurate understanding of radiative transfer in high-temperature CO2 gas environments.
The temperature dependence of optical broadening is a significant factor in accurately predicting gas absorption spectra.