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Published August 5, 2019 | Supplemental Material
Journal Article Open

An International Laboratory Comparison Study of Volumetric and Gravimetric Hydrogen Adsorption Measurements

Abstract

In order to determine a material's hydrogen storage potential, capacity measurements must be robust, reproducible and accurate. Commonly, research reports focus on the gravimetric capacity, and often times the volumetric capacity is not reported. Determining volumetric capacities is not as straight‐forward, especially for amorphous materials. This is the first study to compare measurement reproducibly across laboratories for excess and total volumetric hydrogen sorption capacities based on the packing volume. The use of consistent measurement protocols, common analysis, and figure of merits for reporting data in this study, enable the comparison of the results for two different materials. Importantly, the results show good agreement for excess gravimetric capacities amongst the laboratories. Irreproducibility for excess and total volumetric capacities is attributed to real differences in the measured packing volume of the material.

Additional Information

© 2019 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. Manuscript received: February 20, 2019; Revised manuscript received: June 2, 2019; Accepted manuscript online: June 8, 2019; Version of record online: June 26, 2019. There are no conflicts to declare. We gratefully acknowledge Prof. Jeffrey R. Long for helpful discussions and measurements performed in his laboratory at Lawrence Berkeley National Laboratory. National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC, for the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. Sandia National Laboratories, a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA-0003525. Acknowledgment of funding for this work in part is from the Hydrogen Materials—Advanced Research Consortium (HyMARC), established as part of the Energy Materials Network under the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Fuel Cell Technologies Office under Contract Number DE-AC36-08-GO28308 with the National Renewable Energy Laboratory, Contract Number DE-AC04-94AL85000 with Sandia National Laboratories, Contract Number DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory. Argonne National Laboratory is supported by Office of Science of U. S. Department of Energy under the Contract Number DE-AC02-06CH11357. Z.T.P. and H.-C.Z. are funded under contract DOE-EERE award number DE-EE0007049. M.T.K. is supported by an NSF graduate research fellowship. Z.H. is supported through the Oak Ridge Institute for Science and Education (ORISE). ORISE is managed by Oak Ridge Associated Universities (ORAU) under DOE Contract Number DE-AC05- 06OR23100. The work at NIST is supported by Advanced Research Projects Agency-Energy (ARPA-E) through Interagency Agreement No. 1208-0000. M. S. L. H. is supported by the Fullbright-Nehru Postdoctoral Research Grant (document award number 2044/FNPDR/2015).

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Created:
August 22, 2023
Modified:
October 20, 2023