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High-Pressure Hydrogen Adsorption on a Porous Electron-Rich Covalent Organonitridic Framework

Murialdo, Maxwell and Weadock, Nicholas J. and Liu, Yiqun and Ahn, Channing C. and Baker, Sarah E. and Landskron, Kai and Fultz, Brent (2019) High-Pressure Hydrogen Adsorption on a Porous Electron-Rich Covalent Organonitridic Framework. ACS Omega, 4 (1). pp. 444-448. ISSN 2470-1343. PMCID PMC6648737. doi:10.1021/acsomega.8b03206.

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We report that a porous, electron-rich, covalent, organonitridic framework (PECONF-4) exhibits an unusually high hydrogen uptake at 77 K, relative to its specific surface area. Chahine’s rule, a widely cited heuristic for hydrogen adsorption, sets a maximum adsorptive uptake of 1 wt % hydrogen at 77 K per 500 m^2 of the adsorbent surface area. High-pressure hydrogen adsorption measurements in a Sieverts apparatus showed that PECONF-4 exceeds Chahine’s rule by 50%. The Brunauer–Emmett–Teller (BET) specific surface area of PECONF-4 was measured redundantly with nitrogen, argon, and carbon dioxide and found to be between 569 ± 2 and 676 ± 13 m^2 g^(–1). Furthermore, hydrogen on PECONF-4 has a high heat of adsorption, in excess of 9 kJ mol^(–1).

Item Type:Article
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URLURL TypeDescription Information CentralArticle
Weadock, Nicholas J.0000-0002-1178-7641
Landskron, Kai0000-0001-6170-4704
Fultz, Brent0000-0002-6364-8782
Additional Information:© 2019 American Chemical Society. ACS AuthorChoice - This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. Received: November 16, 2018; Accepted: December 18, 2018; Published: January 7, 2019. This work was supported as part of EFree, an Energy Frontier Research Center under Award no. DE-SC0001057. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. The authors declare no competing financial interest.
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0001057
Department of Energy (DOE)DE-AC52-07NA27344
Issue or Number:1
PubMed Central ID:PMC6648737
Record Number:CaltechAUTHORS:20190321-112730967
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Official Citation:High-Pressure Hydrogen Adsorption on a Porous Electron-Rich Covalent Organonitridic Framework. Maxwell Murialdo, Nicholas J. Weadock, Yiqun Liu, Channing C. Ahn, Sarah E. Baker, Kai Landskron, and Brent Fultz. ACS Omega 2019 4 (1), 444-448. DOI: 10.1021/acsomega.8b03206
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94018
Deposited By: Tony Diaz
Deposited On:21 Mar 2019 21:51
Last Modified:24 Feb 2022 17:57

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