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New Constraints on the Melting Temperature and Phase Stability of Shocked Iron up to 270 GPa Probed by Ultrafast X-Ray Absorption Spectroscopy.
Phys Rev Lett
December 2024
European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, Grenoble, CS 40220, 38043, France.
Studying the properties and phase diagram of iron at high-pressure and high-temperature conditions has relevant implications for Earth's inner structure and dynamics and the temperature of the inner core boundary (ICB) at 330 GPa. Also, a hexagonal-closed packed to body-centered cubic (bcc) phase transition has been predicted by many theoretical works but observed only in a few experiments. The recent coupling of high-power laser with advanced x-ray sources from synchrotrons allows for novel approaches to address these issues.
View Article and Find Full Text PDFComplete Aqueous Defluorination of GenX (Hexafluoropropylene Oxide Dimer Acid Anion) by Pulsed Electrolysis with Polarity Reversal.
ChemSusChem
January 2025
University of Rochester, Department of Chemical Engineering, ., 14627, Rochester, UNITED STATES OF AMERICA.
Per- and polyfluoroalkyl substances (PFAS) are extremely stable chemicals that are essential for modern life and decarbonization technologies. Yet PFAS are persistent pollutants that are harmful to human health. Hexafluoropropylene oxide dimer acid (GenX), a replacement for the PFAS chemical perfluorooctanoic acid, continues to pollute waterways.
View Article and Find Full Text PDFEnhancing cathode composites with conductive alignment synergy for solid-state batteries.
Sci Adv
January 2025
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA.
Enhancing transport and chemomechanical properties in cathode composites is crucial for the performance of solid-state batteries. Our study introduces the filler-aligned structured thick (FAST) electrode, which notably improves mechanical strength and ionic/electronic conductivity in solid composite cathodes. The FAST electrode incorporates vertically aligned nanoconducting carbon nanotubes within an ion-conducting polymer electrolyte, creating a low-tortuosity electron/ion transport path while strengthening the electrode's structure.
View Article and Find Full Text PDFStructure-Function Analysis of CYP105A1 in the Metabolism of Nonsteroidal Anti-inflammatory Drugs.
Biochemistry
January 2025
Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
CYP105A1 exhibits monooxygenase activity to a wide variety of structurally different substrates with regio- and stereospecificity, making its application range broad. Our previous studies have shown that CYP105A1 wild type and its variants metabolize 12 types of nonsteroidal anti-inflammatory drugs (NSAIDs). In particular, the R84A variant exhibited a high activity against many NSAIDs.
View Article and Find Full Text PDFAdsorption properties and mechanisms of Cd by co-pyrolysis composite material derived from peanut biochar and tailing waste.
Environ Geochem Health
January 2025
College of Resource and Environmental Engineering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resource, Wuhan University of Science and Technology, Wuhan, 430081, People's Republic of China.
Cadmium (Cd) contamination in aquatic systems is a widespread environmental issue. In this study, a solid waste iron tailings and biochar hybrid (Fe-TWBC) was successfully synthesized derived from co-pyrolysis of peanut shell and tailing waste (Fe-TW). Characterization analyses showed that the metal oxides from solid waste iron tailings successfully loaded onto the biochar surface, with more functional groups in Fe-TWBC.
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