How Reproducible are Surface Areas Calculated from the BET Equation?
Authors
Osterrieth, Johannes WM
Rampersad, James
Madden, David
Rampal, Nakul
Skoric, Luka
Connolly, Bethany
Allendorf, Mark D
Stavila, Vitalie
Snider, Jonathan L
Ameloot, Rob
Marreiros, João
Ania, Conchi
Azevedo, Diana
Vilarrasa-Garcia, Enrique
Santos, Bianca F
Bu, Xian-He
Chang, Ze
Bunzen, Hana
Champness, Neil R
Griffin, Sarah L
Chen, Banglin
Lin, Rui-Biao
Coasne, Benoit
Cohen, Seth
Moreton, Jessica C
Colón, Yamil J
Chen, Linjiang
Clowes, Rob
Coudert, François-Xavier
Cui, Yong
Hou, Bang
D'Alessandro, Deanna M
Doheny, Patrick W
Dincă, Mircea
Sun, Chenyue
Doonan, Christian
Huxley, Michael Thomas
Evans, Jack D
Falcaro, Paolo
Ricco, Raffaele
Farha, Omar
Idrees, Karam B
Islamoglu, Timur
Feng, Pingyun
Yang, Huajun
Forgan, Ross S
Bara, Dominic
Furukawa, Shuhei
Sanchez, Eli
Gascon, Jorge
Telalović, Selvedin
Ghosh, Sujit K
Mukherjee, Soumya
Hill, Matthew R
Sadiq, Muhammed Munir
Horcajada, Patricia
Salcedo-Abraira, Pablo
Kaneko, Katsumi
Kukobat, Radovan
Kenvin, Jeff
Keskin, Seda
Kitagawa, Susumu
Otake, Ken-Ichi
Lively, Ryan P
DeWitt, Stephen JA
Llewellyn, Phillip
Lotsch, Bettina V
Emmerling, Sebastian T
Pütz, Alexander M
Martí-Gastaldo, Carlos
Padial, Natalia M
García-Martínez, Javier
Linares, Noemi
Maspoch, Daniel
Suárez Del Pino, Jose A
Moghadam, Peyman
Oktavian, Rama
Morris, Russel E
Wheatley, Paul S
Navarro, Jorge
Petit, Camille
Danaci, David
Rosseinsky, Matthew J
Katsoulidis, Alexandros P
Schröder, Martin
Han, Xue
Yang, Sihai
Serre, Christian
Mouchaham, Georges
Sholl, David S
Thyagarajan, Raghuram
Siderius, Daniel
Snurr, Randall Q
Goncalves, Rebecca B
Telfer, Shane
Lee, Seok J
Ting, Valeska P
Rowlandson, Jemma L
Uemura, Takashi
Iiyuka, Tomoya
van der Veen, Monique A
Rega, Davide
Van Speybroeck, Veronique
Rogge, Sven MJ
Lamaire, Aran
Walton, Krista S
Bingel, Lukas W
Wuttke, Stefan
Andreo, Jacopo
Yaghi, Omar
Zhang, Bing
Yavuz, Cafer T
Nguyen, Thien S
Zamora, Felix
Montoro, Carmen
Zhou, Hongcai
Kirchon, Angelo
Publication Date
2022-05-23Journal Title
Adv Mater
ISSN
0935-9648
Publisher
Wiley
Language
en
Type
Article
This Version
AO
VoR
Metadata
Show full item recordCitation
Osterrieth, J. W., Rampersad, J., Madden, D., Rampal, N., Skoric, L., Connolly, B., Allendorf, M. D., et al. (2022). How Reproducible are Surface Areas Calculated from the BET Equation?. Adv Mater https://doi.org/10.1002/adma.202201502
Description
Funder: Sandia National Laboratories; Id: http://dx.doi.org/10.13039/100006234
Funder: U.S. Department of Energy; Id: http://dx.doi.org/10.13039/100000015
Funder: Office of Energy Efficiency and Renewable Energy; Id: http://dx.doi.org/10.13039/100006134
Funder: Hydrogen and Fuel Cell Technologies Office; Id: http://dx.doi.org/10.13039/100010268
Funder: Active Co. Research
Funder: Spanish MICINN
Abstract
Porosity and surface area analysis play a prominent role in modern materials science. At the heart of this sits the Brunauer-Emmett-Teller (BET) theory, which has been a remarkably successful contribution to the field of materials science. The BET method was developed in the 1930s for open surfaces but is now the most widely used metric for the estimation of surface areas of micro- and mesoporous materials. Despite its widespread use, the calculation of BET surface areas causes a spread in reported areas, resulting in reproducibility problems in both academia and industry. To prove this, for this analysis, 18 already-measured raw adsorption isotherms were provided to sixty-one labs, who were asked to calculate the corresponding BET areas. This round-robin exercise resulted in a wide range of values. Here, the reproducibility of BET area determination from identical isotherms is demonstrated to be a largely ignored issue, raising critical concerns over the reliability of reported BET areas. To solve this major issue, a new computational approach to accurately and systematically determine the BET area of nanoporous materials is developed. The software, called "BET surface identification" (BETSI), expands on the well-known Rouquerol criteria and makes an unambiguous BET area assignment possible.
Keywords
Perspective, Perspectives, adsorption, BET theory, porosimetry, porous materials, surface area
Sponsorship
Engineering and Physical Sciences Research Council (EP/L015978/1)
Wellcome Trust (104384/Z/14/Z)
Innovate UK (104384)
Identifiers
adma202201502
External DOI: https://doi.org/10.1002/adma.202201502
This record's URL: https://www.repository.cam.ac.uk/handle/1810/337403
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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