Digitization of Adsorption Isotherms from “The Thermodynamics and Hysteresis of Adsorption”

被引：0

作者：

Siderius D.W. ^{[1
]}

机构：

[1] National Institute of Standards and Technology, Gaithersburg, 20899, MD

来源：

Journal of Research of the National Institute of Standards and Technology | 2021年 / 126卷

关键词：

Adsorption; Hysteresis; Isotherm; Scanning isotherm;

D O I：

10.6028/JRES.126.037

中图分类号：

学科分类号：

摘要：

Sorption isotherms collected from tables in the seminal dissertation, “The Thermodynamics and Hysteresis of Adsorption” by A. J. Brown [1], have been digitized and made publicly available, along with supporting software scripts that facilitates usage of the data. The isotherms include laboratory measurements of xenon, krypton, and carbon dioxide adsorption (and, when possible, desorption) isotherms on a single sample of Vycor glass1, at various temperatures including subcritical conditions for xenon and krypton. The highlight of this dataset is the collection of “scanning” isotherms for xenon on Vycor at 131 K. The scanning isotherms examine numerous trajectories through the adsorption-desorption hysteresis region, such as primary adsorption and desorption scanning isotherms that terminate at the hysteresis boundary, secondary scanning isotherms made by selective reversals that return to the boundary, and closed scanning loops. This dataset was originally used to test the independent domain theory of adsorption and continues to support successor theories of adsorption/desorption scanning hysteresis including more recent theories based on percolation models. Through digital preservation and release of the tables from Brown's dissertation, these data are now more easily accessible and can continue to find use in developing models of adsorption for fundamental and practical applications. © 2021 National Institute of Standards and Technology. All rights reserved.

引用

共 15 条

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