Title: An international laboratory comparison study of volumetric and gravimetric hydrogen adsorption measurements
Authors: HURST KATHERINE E.GENNETT THOMASADAMS JESSEALLENDORF MARK D.BALDERAS-XICOHTENCATL RAFAELBIELEWSKI MAREKEDWARDS BRYCEESPINAL LFULTZ BRENTHIRSCHER MICHAELHUDSON M.S.L.HULVEY ZERICLATROCHE M.LIU DI-JIAKAPELEWSKI MATTHEWNAPOLITANO EMILIOPERRY ZACHARY T.PUREWAL JUSTINSTAVILA VITALIEVEENSTRA MIKEWHITE JAMES L.YUAN YUPINGZHOU HONG-CAIZLOTEA CLAUDIAPARILLA PHILIP
Citation: CHEMPHYSCHEM vol. 20 no. 15 p. 1997-2009
Publisher: WILEY-V C H VERLAG GMBH
Publication Year: 2019
JRC N°: JRC114811
ISSN: 1439-4235 (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC114811
DOI: 10.1002/cphc.201900166
Type: Articles in periodicals and books
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 reproducibility 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.
JRC Directorate:Energy, Transport and Climate

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