Next Article in Journal
Mechanism of Nickel, Magnesium, and Iron Recovery from Olivine Bearing Ore during Leaching with Hydrochloric Acid Including a Carbonation Pre-Treatment
Next Article in Special Issue
Hydrogen Accumulation and Distribution in Titanium Coatings at Gas-Phase Hydrogenation
Previous Article in Journal
Experimental Investigations on the Effects of Rotational Speed on Temperature and Microstructure Variations in Incremental Forming of T6- Tempered and Annealed AA2219 Aerospace Alloy
Previous Article in Special Issue
Effect of Substitutional Elements on the Thermodynamic and Electrochemical Properties of Mechanically Alloyed La1.5Mg0.5Ni7−xMx alloys (M = Al, Mn)
Open AccessFeature PaperArticle

In Situ Time-Resolved Decomposition of β-Hydride Phase in Palladium Nanoparticles Coated with Metal-Organic Framework

1
The Smart Materials Research Institute, Southern Federal University, 178/24 Sladkova, 344090 Rostov-on-Don, Russia
2
Southern Scientific Centre, Russian Academy of Sciences, 41 Chekhova, 344006 Rostov-on-Don, Russia
3
National Research Centre “Kurchatov Institute”, 1 Akademika Kurchatova pl., 123182 Moscow, Russia
*
Author to whom correspondence should be addressed.
Metals 2020, 10(6), 810; https://doi.org/10.3390/met10060810
Received: 11 May 2020 / Revised: 11 June 2020 / Accepted: 16 June 2020 / Published: 17 June 2020
(This article belongs to the Special Issue Advanced Hydrogen Storage Metallic Materials/Nanomaterials)
The formation of palladium hydrides is a well-known phenomenon, observed for both bulk and nanosized samples. The kinetics of hydrogen adsorption/desorption strongly depends on the particle size and shape, as well as the type of support and/or coating of the particles. In addition, the structural properties of hydride phases and their distribution also depend on the particle size. In this work, we report on the in situ characterization of palladium nanocubes coated with HKUST-1 metal-organic framework ([email protected]) during desorption of hydrogen by means of synchrotron-based time-resolved X-ray powder diffraction. A slower hydrogen desorption, compared to smaller sized Pd nanoparticles was observed. Rietveld refinement of the time-resolved data revealed the remarkable stability of the lattice parameters of α- and β-hydride phases of palladium during the α- to β- phase transition, denoting the behavior more similar to the bulk materials than nanoparticles. The stability in the crystal sizes for both α- and β-hydride phases during the phase transition indicates that no sub-domains are formed within a single particle during the phase transition. View Full-Text
Keywords: palladium nanoparticles; palladium hydrides; metal-organic frameworks; x-ray diffraction palladium nanoparticles; palladium hydrides; metal-organic frameworks; x-ray diffraction
Show Figures

Graphical abstract

MDPI and ACS Style

Kirichkov, M.V.; Bugaev, A.L.; Skorynina, A.A.; Butova, V.V.; Budnyk, A.P.; Guda, A.A.; Trigub, A.L.; Soldatov, A.V. In Situ Time-Resolved Decomposition of β-Hydride Phase in Palladium Nanoparticles Coated with Metal-Organic Framework. Metals 2020, 10, 810. https://doi.org/10.3390/met10060810

AMA Style

Kirichkov MV, Bugaev AL, Skorynina AA, Butova VV, Budnyk AP, Guda AA, Trigub AL, Soldatov AV. In Situ Time-Resolved Decomposition of β-Hydride Phase in Palladium Nanoparticles Coated with Metal-Organic Framework. Metals. 2020; 10(6):810. https://doi.org/10.3390/met10060810

Chicago/Turabian Style

Kirichkov, Mikhail V.; Bugaev, Aram L.; Skorynina, Alina A.; Butova, Vera V.; Budnyk, Andriy P.; Guda, Alexander A.; Trigub, Alexander L.; Soldatov, Alexander V. 2020. "In Situ Time-Resolved Decomposition of β-Hydride Phase in Palladium Nanoparticles Coated with Metal-Organic Framework" Metals 10, no. 6: 810. https://doi.org/10.3390/met10060810

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop