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由变温红外光谱数据推导的吸附在沸石中的一氧化碳的摩尔熵和焓：分子间模式的作用

Molar Entropy and Enthalpy of CO Adsorbed in Zeolites as Derived from VTIR Data: Role of Intermolecular Modes.

作者信息

Garrone Edoardo, Otero Areán Carlos, Rodríguez Delgado Montserrat, Bonelli Barbara

机构信息

Department of Applied Science and Technology and INSTM Unit of Torino Politecnico Politecnico di Torino Corso Duca degli Abruzzi, 24 10129 Torino Italy.

Department of Chemistry University of the Balearic Islands Palma de Mallorca 07122 Spain.

出版信息

ChemistryOpen. 2020 May 20;9(5):599-606. doi: 10.1002/open.202000019. eCollection 2020 May.

DOI:10.1002/open.202000019
PMID:32440464
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7239313/
Abstract

Detailed analysis of recently reported variable-temperature IR (VTIR) spectra of carbon monoxide adsorbed in alkaline zeolites shows how, not only the corresponding values of standard adsorption enthalpy ( ) and entropy ( ) can be obtained, but also the thermodynamic values of molar entropy and enthalpy which characterize the adsorbed gas phase. In addition, it is shown that the so obtained molar entropy data can lead to new insights into soft molecular modes, which would be hardly accessible by conventional IR spectroscopic techniques.

摘要

对近期报道的碱性沸石中吸附的一氧化碳的变温红外（VTIR）光谱进行的详细分析表明，不仅可以获得标准吸附焓（ ）和熵（ ）的相应值，还能得到表征吸附气相的摩尔熵和焓的热力学值。此外，结果表明，如此获得的摩尔熵数据能够为软分子模式带来新的见解，而这是传统红外光谱技术难以实现的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/fe65b4a44547/OPEN-9-599-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/77150f85a169/OPEN-9-599-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/96a673704a78/OPEN-9-599-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/9e160defeef8/OPEN-9-599-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/3dcac3e3233d/OPEN-9-599-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/9a65970fea88/OPEN-9-599-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/f8617ff8ad1f/OPEN-9-599-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/fe65b4a44547/OPEN-9-599-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/77150f85a169/OPEN-9-599-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/96a673704a78/OPEN-9-599-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/9e160defeef8/OPEN-9-599-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/3dcac3e3233d/OPEN-9-599-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/9a65970fea88/OPEN-9-599-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/f8617ff8ad1f/OPEN-9-599-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f119/7239313/fe65b4a44547/OPEN-9-599-g005.jpg

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本文引用的文献

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Probing Gas Adsorption in Zeolites by Variable-Temperature IR Spectroscopy: An Overview of Current Research.变温红外光谱法探测沸石中的气体吸附：当前研究综述。
Molecules. 2017 Sep 15;22(9):1557. doi: 10.3390/molecules22091557.
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Carbon monoxide adsorption on low-silica zeolites: from single to dual and to multiple cation sites.
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Thermodynamics of reversible gas adsorption on alkali-metal exchanged zeolites--the interplay of infrared spectroscopy and theoretical calculations.碱金属交换沸石上可逆气体吸附的热力学——红外光谱与理论计算的相互作用
Phys Chem Chem Phys. 2007 Mar 28;9(12):1421-37. doi: 10.1039/b615535a. Epub 2007 Jan 16.
8
Single and dual cation sites in zeolites: theoretical calculations and FTIR spectroscopic studies on CO adsorption on K-FER.沸石中的单阳离子和双阳离子位点：关于CO在K-FER上吸附的理论计算和傅里叶变换红外光谱研究
J Phys Chem B. 2006 Nov 16;110(45):22542-50. doi: 10.1021/jp0631331.
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The vibrational dynamics of carbon monoxide in a confined space-CO in zeolites.受限空间中一氧化碳的振动动力学——沸石中的一氧化碳
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Variable temperature infrared spectroscopy: a convenient tool for studying the thermodynamics of weak solid-gas interactions.可变温度红外光谱法：研究弱固-气相互作用热力学的便捷工具。
Chem Soc Rev. 2005 Oct;34(10):846-57. doi: 10.1039/b407049f. Epub 2005 Aug 23.