
Journal of Alloys and Compounds, Journal Year: 2022, Volume and Issue: 932, P. 167609 - 167609
Published: Oct. 17, 2022
Language: Английский
Journal of Alloys and Compounds, Journal Year: 2022, Volume and Issue: 932, P. 167609 - 167609
Published: Oct. 17, 2022
Language: Английский
Rare Metals, Journal Year: 2024, Volume and Issue: 43(11), P. 5549 - 5572
Published: July 5, 2024
Language: Английский
Citations
9ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 10, 2025
This study presents the design and evaluation of a medium entropy alloy (MEA), Ti21Zr21Fe41Ni17, for hydrogen storage at room temperature (30 °C), employing an integrated approach that combines CALPHAD calculations with semiempirical rules. The was developed based on four specific criteria: (1) valence electron concentration (VEC) between 6.2 6.5, (2) atomic size mismatch (δ) least 9.7%, (3) radius ratio hydride-forming to non-hydride-forming elements (rA/rB) ranging from 1.149 1.219, (4) stability C14 Laves phase as primary phase, confirmed by CALPHAD. resulting crystallized predominantly in (92.8 wt %), minor body-centered cubic (BCC) phase. Transmission microscopy (TEM) results revealed coherent nanograin boundaries, particularly C14/BCC interphase, facilitating rapid hydrogenation kinetics. After one-step simple thermal activation, reversibly absorbed 1.4 % relatively low hysteresis fast kinetics, attributed preferential hydride nucleation grain boundaries. In terms thermodynamic properties, chemical composition, designed according aforementioned criteria, should be considered, high iron content (41%) playing critical role. percentage iron, element, stabilizes due significant negative contribution interaction parameter (Ωij) Fe–Zr pair (Ωij = −118.4 kJ/mol), which enthalpy mixing structure. work underscores utility combining methods while outlining challenges future directions optimizing MEAs storage.
Language: Английский
Citations
1Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179352 - 179352
Published: Feb. 1, 2025
Language: Английский
Citations
1International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 128, P. 432 - 456
Published: April 17, 2025
Language: Английский
Citations
1Journal of Alloys and Compounds, Journal Year: 2022, Volume and Issue: 932, P. 167609 - 167609
Published: Oct. 17, 2022
Language: Английский
Citations
37