Ultrafast Yttrium Hydride Chemistry at High Pressures via Non-equilibrium States Induced by an X-ray Free Electron Laser.

Autor: Siska E; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Smith GA; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States.; Department of Chemistry & Biochemistry, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Villa-Cortes S; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Conway LJ; Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, U.K.; Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan., Husband RJ; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Van Cleave J; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States.; Department of Physics & Astronomy, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Petitgirard S; Institute of Geochemistry and Petrology, ETH Zürich, Rämistrasse 101, 8092 Zürich, Switzerland., Cerantola V; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany.; Department of Earth and Environmental Sciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 4, 20126 Milan, Italy., Appel K; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Baehtz C; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Bouffetier V; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Dwivedi A; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Göde S; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Gorkhover T; University of Hamburg, Institute for Experimental Physics, 22761 Hamburg, Germany., Konopkova Z; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Hosseini-Saber SMA; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Kuschel S; University of Hamburg, Institute for Experimental Physics, 22761 Hamburg, Germany., Laurus T; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Nakatsutsumi M; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Strohm C; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Sztuk-Dambietz J; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Zastrau U; European X-Ray Free-Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany., Smith D; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Lawler KV; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Pickard CJ; Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, U.K.; Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan., Schwartz CP; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States., Salamat A; Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States.; Department of Physics & Astronomy, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States.
Jazyk: angličtina
Zdroj: The journal of physical chemistry letters [J Phys Chem Lett] 2024 Oct 03; Vol. 15 (39), pp. 9912-9919. Date of Electronic Publication: 2024 Sep 20.
DOI: 10.1021/acs.jpclett.4c02134
Abstrakt: Controlling the formation and stoichiometric content of the desired phases of materials has become of central interest for a variety of fields. The possibility of accessing metastable states by initiating reactions by X-ray-triggered mechanisms over ultrashort time scales has been enabled by the development of X-ray free electron lasers (XFELs). Utilizing the exceptionally high-brilliance X-ray pulses from the EuXFEL, we report the synthesis of a previously unobserved yttrium hydride under high pressure, along with nonstoichiometric changes in hydrogen content as probed at a repetition rate of 4.5 MHz using time-resolved X-ray diffraction. Exploiting non-equilibrium pathways, we synthesize and characterize a hydride in a Weaire-Phelan structure type at pressures as low as 125 GPa, predicted using a crystal structure search, with a hydrogen content of 4.0-5.75 hydrogens per cation, that is enthalpically metastable on the convex hull.
Databáze: MEDLINE