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Enhancing Hydrogen Storage Capacity of Pd Nanoparticles by Sandwiching between Inorganic Nanosheets

Title data

Ament, Kevin ; Kobayashi, Hirokazu ; Kusada, Kohei ; Breu, Josef ; Kitagawa, Hiroshi:
Enhancing Hydrogen Storage Capacity of Pd Nanoparticles by Sandwiching between Inorganic Nanosheets.
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 648 (5 March 2022) Issue 10 . - No. e202100370.
ISSN 1521-3749
DOI: https://doi.org/10.1002/zaac.202100370

Official URL: Volltext

Abstract in another language

H-2 is regarded to play a crucial role in the transition from a fossil fuel-based energy economy towards an environmentally friendly one. However, storage of H-2 is still challenging, but palladium (Pd) based materials show exciting properties. Therefore, nanoparticulate Pd has been intensely studied for hydrogen storage in the past years. Here, we stabilize Pd nanoparticles by intercalation between inorganic nanosheets of hectorite (NaHec). Compared to nanoparticles stabilized by the polymer polyvinylpyrrolidone (PVP), the H-2 storage capacity was found to be 86 % higher for identical Pd nanoparticles being intercalated between nanosheets. We attribute this remarkably enhanced H-2 storage capacity to the partial oxidation of Pd, as evidenced by X-ray photoelectron spectroscopy (XPS). The higher amount of holes in the 4d band leads to a higher amount of H-2 that can be absorbed when Pd is stabilized between the nanosheets of hectorite compared to the PVP stabilized nanoparticles.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: hectorite; layered compounds; Palladium; hydrogen storage; nanoparticles; HYDRIDE FORMATION; PALLADIUM; SIZE; NANOCRYSTALS; PRESSURE
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I > Chair Inorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP A 2
Graduate Schools > Elite Network Bavaria
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Graduate Schools
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 04 Oct 2022 12:49
Last Modified: 07 Oct 2022 09:47
URI: https://eref.uni-bayreuth.de/id/eprint/72189