Establishing ZIF-8 as a reference material for hydrogen cryoadsorption: An interlaboratory study

Research output: Contribution to journalResearch articleContributedpeer-review


  • Jose A. Villajos - , Federal Institute for Materials Research and Testing Berlin, Centro Ibérico de Investigación en Almacenamiento Energético (CIIAE) (Author)
  • Rafael Balderas-Xicohténcatl - , Max Planck Institute for Intelligent Systems (Author)
  • Ali N. Al Shakhs - , University of Cambridge (Author)
  • Ángel Berenguer-Murcia - , University of Alicante (Author)
  • Craig E. Buckley - , Curtin University (Author)
  • Diego Cazorla-Amorós - , University of Alicante (Author)
  • Georgia Charalambopoulou - , Demokritos National Centre for Scientific Research (Author)
  • Fabrice Couturas - , Université Paris-Est Créteil (Author)
  • Fermin Cuevas - , Université Paris-Est Créteil (Author)
  • David Fairen-Jimenez - , University of Cambridge (Author)
  • Karen N. Heinselman - , National Renewable Energy Laboratory (Author)
  • Terry D. Humphries - , Curtin University (Author)
  • Stefan Kaskel - , Chair of Inorganic Chemistry I (Author)
  • Hyunlim Kim - , Ulsan National Institute of Science and Technology (Author)
  • Juan P. Marco-Lozar - , G2MTech. (Author)
  • Hyunchul Oh - , Ulsan National Institute of Science and Technology (Author)
  • Philip A. Parilla - , National Renewable Energy Laboratory (Author)
  • Mark Paskevicius - , Curtin University (Author)
  • Irena Senkovska - , Chair of Inorganic Chemistry I (Author)
  • Sarah Shulda - , National Renewable Energy Laboratory (Author)
  • Joaquin Silvestre-Albero - , University of Alicante (Author)
  • Theodore Steriotis - , Demokritos National Centre for Scientific Research (Author)
  • Christos Tampaxis - , Demokritos National Centre for Scientific Research (Author)
  • Michael Hirscher - , Max Planck Institute for Intelligent Systems, Tohoku University (Author)
  • Michael Maiwald - , Federal Institute for Materials Research and Testing Berlin (Author)


Hydrogen storage by cryoadsorption on porous materials has the advantages of low material cost, safety, fast kinetics, and high cyclic stability. The further development of this technology requires reliable data on the H2 uptake of the adsorbents, however, even for activated carbons the values between different laboratories show sometimes large discrepancies. So far no reference material for hydrogen cryoadsorption is available. The metal-organic framework ZIF-8 is an ideal material possessing high thermal, chemical, and mechanical stability that reduces degradation during handling and activation. Here, we distributed ZIF-8 pellets synthesized by extrusion to 9 laboratories equipped with 15 different experimental setups including gravimetric and volumetric analyzers. The gravimetric H2 uptake of the pellets was measured at 77 K and up to 100 bar showing a high reproducibility between the different laboratories, with a small relative standard deviation of 3–4 % between pressures of 10–100 bar. The effect of operating variables like the amount of sample or analysis temperature was evaluated, remarking the calibration of devices and other correction procedures as the most significant deviation sources. Overall, the reproducible hydrogen cryoadsorption measurements indicate the robustness of the ZIF-8 pellets, which we want to propose as a reference material.


Original languageEnglish
Article numbere202300794
Pages (from-to)1-7
Number of pages7
Issue number5
Publication statusPublished - 1 Mar 2024

External IDs

PubMed 38165137



  • hydrogen storage, interlaboratory analysis, metal-organic frameworks, reference material, reproducibility and standardization

Library keywords