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Polyol Process Coupled to Cold Plasma as a New and Efficient Nanohydride Processing Method: Nano-Ni2H as a Case Study

1
Université Paris 13, Sorbonne Paris Cité, CNRS UPR-3407, LSPM, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France
2
Université Paris Diderot, Sorbonne Paris Cité, CNRS UMR-7086, ITODYS, 15 rue Jean Antoine de Baïf, 75205 Paris, France
3
Sorbonne Université, CNRS UMR-7197, LRS, 2-4 Place Jussieu, 75005 Paris, France
4
Université de Grenoble Alpes, Grenoble INP, CNRS UPR-2940, Institut Néel, 25 Avenue des Martyrs, 38042 Grenoble, France
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 136; https://doi.org/10.3390/nano10010136
Received: 22 November 2019 / Revised: 28 December 2019 / Accepted: 8 January 2020 / Published: 12 January 2020
An alternative route for metal hydrogenation has been investigated: cold plasma hydrogen implantation on polyol-made transition metal nanoparticles. This treatment applied to a challenging system, Ni–H, induces a re-ordering of the metal lattice, and superstructure lines have been observed by both Bragg–Brentano and grazing incidence X-ray diffraction. The resulting intermetallic structure is similar to those obtained by very high-pressure hydrogenation of nickel and prompt us to suggest that plasma-based hydrogen implantation in nanometals is likely to generate unusual metal hydride, opening new opportunities in chemisorption hydrogen storage. Typically, almost isotropic in shape and about 30 nm sized hexagonal-packed Ni2H single crystals were produced starting from similarly sized cubic face-centred Ni polycrystals. View Full-Text
Keywords: nickel nanoparticles; polyol process; hydrogen cold plasma implantation; nickel hydrides; hydrogen storage nickel nanoparticles; polyol process; hydrogen cold plasma implantation; nickel hydrides; hydrogen storage
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MDPI and ACS Style

Haj-Khlifa, S.; Nowak, S.; Beaunier, P.; De Rango, P.; Redolfi, M.; Ammar-Merah, S. Polyol Process Coupled to Cold Plasma as a New and Efficient Nanohydride Processing Method: Nano-Ni2H as a Case Study. Nanomaterials 2020, 10, 136.

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