Produção Nacional
Revisado por pares
How Reproducible are Surface Areas Calculated from the BET Equation?
2022; Volume: 34; Issue: 27 Linguagem: Inglês
10.1002/adma.202201502
ISSN1521-4095
AutoresJohannes W. M. Osterrieth, James Rampersad, David G. Madden, Nakul Rampal, Luka Skorić, Bethany Connolly, Mark D. Allendorf, Vitalie Stavila, Jonathan L. Snider, Rob Ameloot, João Marreiros, Conchi O. Ania, Diana C. S. Azevedo, Enrique Vilarrasa‐García, Bianca Ferreira dos Santos, Xian‐He Bu, Ze Chang, Hana Bunzen, Neil R. Champness, Sarah L. Griffin, Banglin Chen, Rui‐Biao Lin, Benoît Coasne, Seth M. Cohen, Jessica C. Moreton, Yamil J. Colón, Linjiang Chen, Rob Clowes, François‐Xavier Coudert, Yong Cui, Bang Hou, Deanna M. D’Alessandro, Patrick W. Doheny, Mircea Dincă, Chenyue Sun, Christian J. Doonan, Michael T. Huxley, Jack D. Evans, Paolo Falcaro, Raffaele Riccò, Omar K. Farha, Karam B. Idrees, Timur İslamoğlu, Pingyun Feng, Huajun Yang, Ross S. Forgan, Dominic Bara, Shuhei Furukawa, Eli Sanchez, Jorge Gascón, Selvedin Telalović, Sujit K. Ghosh, Soumya Mukherjee, M. E. Hill, Muhammed Munir Sadiq, Patricia Horcajada, Pablo Salcedo‐Abraira, Katsumi Kaneko, Radovan Kukobat, Jeff Kenvin, Seda Keskın, Susumu Kitagawa, Ken‐ichi Otake, Ryan P. Lively, Stephen J. A. DeWitt, Philip L. Llewellyn, Bettina V. Lotsch, Sebastian T. Emmerling, Alexander M. Pütz, Carlos Martí‐Gastaldo, Natalia M. Padial, Javier García‐Martínez, Noemi Linares, Daniel Maspoch, Jose A. Suárez del Pino, Peyman Z. Moghadam, Rama Oktavian, Russell E. Morris, Paul Wheatley, Jorge A. R. Navarro, Camille Petit, David Danaci, Matthew J. Rosseinsky, Alexandros P. Katsoulidis, Martin Schröder, Xue Han, Sihai Yang⧫, Christian Serre, Georges Mouchaham, David S. Sholl, Raghuram Thyagarajan, Daniel W. Siderius, Randall Q. Snurr, Rebecca B. Goncalves, Shane G. Telfer, Seok J. Lee, Valeska P. Ting, Jemma Rowlandson, Takashi Uemura, Tomoya Iiyuka, Monique A. Van Der Veen, Davide Rega, Véronique Van Speybroeck, Sven M. J. Rogge, Aran Lamaire, Krista S. Walton, Lukas W. Bingel, Stefan Wuttke, Jacopo Andreo, Omar M. Yaghi, Bing Zhang, Cafer T. Yavuz, Thien S. Nguyen, Félix Zamora, Carmen Montoro, Hong‐Cai Zhou, Angelo Kirchon, David Fairen‐Jimenez,
Tópico(s)Catalytic Processes in Materials Science
ResumoPorosity 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.
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