Hydrogen Storage with Aluminum Formate, ALF: Experimental, Computational, and Technoeconomic Studies
- National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- National University of Singapore (Singapore)
- National University of Singapore (Singapore); University of California, Santa Barbara, CA (United States)
Long-duration storage of hydrogen is necessary for coupling renewable H2 with stationary fuel cell power applications. In this work, aluminum formate (ALF), which adopts the ReO3-type structure, is shown to have remarkable H2 storage performance at non-cryogenic (>120 K) temperatures and low pressures. The most promising performance of ALF is found between 120 K and 160 K and at 10 bar to 20 bar. The study illustrates H2 adsorption performance of ALF over the 77 K to 296 K temperature range using gas isotherms, in situ neutron powder diffraction, and DFT calculations, as well as technoeconomic analysis (TEA), illustrating ALF’s competitive performance for long-duration storage versus compressed hydrogen and leading metal–organic frameworks. In the TEA, it is shown that ALF’s storage capacity, when combined with a temperature/pressure swing process, has advantages versus compressed H2 at a fraction of the pressure (15 bar versus 350 bar). In conclusion, given ALF’s performance in the 10 bar to 20 bar regime under moderate cooling, it is particularly promising for use in safe storage systems serving fuel cells.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); Singapore Ministry of Education (MOE) Academic Research Fund (AcRF); Agency for Science, Technology and Research (A*STAR); Lee Kuan Yew Postdoctoral Fellowship
- Grant/Contract Number:
- AC05-00OR22725; AC02-05CH11231; R-284-000-193-114; U2102d2004; 22-5930-A0001
- OSTI ID:
- 2283831
- Journal Information:
- Journal of the American Chemical Society, Vol. 145, Issue 40; ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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