BEaTmap: Simplified Rigorous BET Analysis of Isothermal Adsorption Data

Ellsworth Bell; David Morris; Mohammad Amin Sadeghi; Jeff Gostick

doi:10.5334/jors.403

BEaTmap: Simplified Rigorous BET Analysis of Isothermal Adsorption Data

Journal of Open Research Software

Volume 12 (2024): Issue 1

By: Ellsworth Bell , David Morris , Mohammad Amin Sadeghi and Jeff Gostick

Open Access

|Mar 2024

Abstract

BEaTmap is an open-source software designed to improve the analysis of isothermal adsorption data. The specific surface area of a porous material is commonly obtained through applying the classic BET theory to the adsorption of inert gases and vapors in the relative pressure range of 5% to 35% and presented as a single value. However, this cookie-cutter approach can yield thermodynamically inconsistent results that are incorrect or misleading. BEaTmap provides a conceptual tool for analyzing the entire set of isothermal adsorption data with BET theory and presents the range of all possible values that are thermodynamically and mathematically consistent. The analysis is presented as a heatmap indicating the results for all valid relative pressure ranges, offering the user a more comprehensive specific surface area answer. The code is written in Python and is available as both a web app and Python package. BEaTmap, documentation, and examples are freely available on GitHub.

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Articles in this issue

DOI: https://doi.org/10.5334/jors.403 | Journal eISSN: 2049-9647

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Language: English

Submitted on: Nov 18, 2021

Accepted on: Feb 15, 2024

Published on: Mar 13, 2024

Published by: Ubiquity Press

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

BET,

specific surface area,

Python,

adsorption,

isotherm

© 2024 Ellsworth Bell, David Morris, Mohammad Amin Sadeghi, Jeff Gostick, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 12 (2024): Issue 1