A reference high-pressure CH 4 adsorption isotherm for zeolite Y: results of an interlaboratory study
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A reference high‑pressure CH4 adsorption isotherm for zeolite Y: results of an interlaboratory study H. G. T. Nguyen1 · C. M. Sims1 · B. Toman1 · J. Horn1 · R. D. van Zee1 · M. Thommes2 · R. Ahmad3 · J. F. M. Denayer4 · G. V. Baron4 · E. Napolitano5 · M. Bielewski5 · E. Mangano6 · S. Brandani6 · D. P. Broom7 · M. J. Benham7 · A. Dailly8 · F. Dreisbach9 · S. Edubilli10 · S. Gumma10,21 · J. Möllmer11 · M. Lange11 · M. Tian12,22 · T. J. Mays12 · T. Shigeoka13 · S. Yamakita13 · M. Hakuman13 · Y. Nakada13 · K. Nakai13 · J. Hwang14 · R. Pini14 · H. Jiang15 · A. D. Ebner15 · M. A. Nicholson15 · J. A. Ritter15 · J. Farrando‑Pérez16 · C. Cuadrado‑Collados16 · J. Silvestre‑Albero16 · C. Tampaxis17 · T. Steriotis17 · D. Řimnáčová18 · M. Švábová18 · M. Vorokhta18 · H. Wang19 · E. Bovens20 · N. Heymans20 · G. De Weireld20 Received: 27 April 2020 / Revised: 28 July 2020 / Accepted: 5 August 2020 © The Author(s) 2020
Abstract This paper reports the results of an international interlaboratory study led by the National Institute of Standards and Technology (NIST) on the measurement of high-pressure surface excess methane adsorption isotherms on NIST Reference Material RM 8850 (Zeolite Y), at 25 °C up to 7.5 MPa. Twenty laboratories participated in the study and contributed over one-hundred adsorption isotherms of methane on Zeolite Y. From these data, an empirical reference equation was determined, along with a 95% uncertainty interval (Uk=2). By requiring participants to replicate a high-pressure reference isotherm for carbon dioxide adsorption on NIST Reference Material RM 8852 (ZSM-5), this interlaboratory study also demonstrated the usefulness of reference isotherms in evaluating the performance of high-pressure adsorption experiments. Keywords CH4 · CO2 · High-pressure adsorption isotherm · Interlaboratory study · Reference isotherm · Reference material · RM 8850 · RM 8852 · Surface excess adsorption · Zeolite Y · ZSM-5
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10450-020-00253-0) contains supplementary material, which is available to authorized users. * H. G. T. Nguyen [email protected]
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Institute of Non-Classical Chemistry, Leipzig, Germany
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University of Bath, Bath, UK
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MicrotracBEL, Suminoe‑ku, Osaka, Japan
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Imperial College London, London, UK
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University of South Carolina, Columbia, SC, USA
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University of Alicante, Alicante, Spain
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National Centre for Scientific Research “Demokritos”, Athens, Greece
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Czech Academy of Sciences, Prague, Czech Republic
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National Institute of Metrology, Beijing, China
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University of Mons, Mons, Belgium
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Present Address: Indian Institute of Technology Tirupati, Andhra Pradesh, India
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Present Address: University of Exeter, Exeter, UK
National Institute of Standards and Technology, Gaithersburg, MD, USA
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Friedrich-Alexander University Erlangen-Nuremberg, Nuremberg, Germany
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Anton Paar QuantaTec Inc, Boynton Beach, FL, USA
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Vrije Universiteit Brussel,
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