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Controlled Release of Hydrogen Isotopes from Hydride-Magnetic Nanomaterials

Journal Article · · ACS Applied Materials and Interfaces
In this work, hydrogen isotopes in the form of protium and deuterium were rapidly desorbed from magnetic-hydride iron oxide-palladium (Fe2O3-Pd) hybrid nanomaterials using an alternating magnetic field (AMF). Palladium, a hydride material with a well-known hydrogen isotope effect, was deposited on Fe2O3 magnetic nanoparticle support by solution chemistries and used as a hydrogen isotope storage component. The morphological, structural, optical, and magnetic studies reveal that the Fe2O3-Pd nanoparticles (NPs) are hybrid structures exhibiting both hydrogen isotope storage (Pd) and magnetic (Fe2O3) properties. The hydrogen isotope sorption/desorption behavior of metal hydride-magnetic nanomaterials was assessed by isothermal pressure-composition response curves (isotherms). The amount and rate of hydrogen isotope gas release was tuned by simply adjusting the strength of the magnetic field strength applied. Protium and deuterium displayed a similar loading capacity, namely H/M 0.55 and H/M=0.45, but different plateau pressures. Significant differences in the kinetics of release for protium and deuterium during magnetic heating were observed. A series of magnetically induced charge-discharge cycling experiments were conducted showing that this is a highly reproducible and robust process
Research Organization:
Savannah River National Lab (SRNL), Aiken, SC (United States); Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM)
Grant/Contract Number:
AC09-08SR22470
OSTI ID:
1637908
Alternate ID(s):
OSTI ID: 1638473
Report Number(s):
SRNL-STI--2019-00331; SRNL-STI--2020-00009
Journal Information:
ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 8 Vol. 12; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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  • Murph, Simona E. Hunyadi; Larsen, George K.; Lascola, Robert J.
  • Journal of Visualized Experiments, Vol. 108, Article No. e53598 https://doi.org/10.3791/53598
journal January 2016

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