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Mechanistic Insights into the Enhanced Ammonia Oxidation Activity of PtRh Electrodeposits.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Ammonia has garnered significant attention as a promising hydrogen carrier due to its high volumetric energy density, milder storage conditions, and relatively mature infrastructure. The electrochemical ammonia oxidation reaction (AOR) can facilitate the release of hydrogen from ammonia at the point of use, enabling on-demand hydrogen production without the need for high pressure storage. However, current AOR catalysts exhibit high overpotentials and sluggish kinetics, and they are susceptible to poisoning by AOR byproducts.
View Article and Find Full Text PDFSynthesis and Stability of High-Energy-Density Niobium Nitrides under High-Pressure Conditions.
Inorg Chem
December 2024
The Earth and Planets Laboratory Carnegie Science, Washington D.C. 20015, United States.
High-energy-density materials (HEDMs) are crucial in various applications, from energy storage to defense technologies. Transition metal polynitrides are promising candidates for HEDMs. Using single-crystal synchrotron X-ray diffraction, we investigated the crystal structures of niobium nitride, specifically NbN and NbN, under high-pressure conditions of up to 86 GPa.
View Article and Find Full Text PDFOvercoming drug delivery challenges with lipid-based nanofibers for enhanced wound repair.
Biomater Sci
December 2024
Department of Animal Biology, School of Life Sciences, University of Hyderabad, Prof. C.R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India.
Wound healing is a dynamic, multi-phase process that includes haemostasis, tissue regeneration, cellular proliferation, and matrix modification. Traditional wound care procedures frequently encounter complications such as delayed healing and infection, demanding new therapeutic approaches. In this context, nanomaterial-based devices provide considerable benefits due to their capacity to improve medication delivery and tissue healing.
View Article and Find Full Text PDFHigh-pressure phase transition and amorphization of BaVO.
Dalton Trans
December 2024
Departamento de Física Aplicada-Instituto de Ciencia de Materiales, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain.
The structural evolution of metavanadate compounds under high pressure offers valuable insights into phase transitions and changes in material properties. This study explores the structural behavior of BaVO under pressures up to 12 GPa using powder X-ray diffraction and density-functional theory (DFT) simulations. The results indicate a phase transition from the ambient pressure orthorhombic phase (space group 222) to a monoclinic phase (space group 2) at 4 GPa, likely driven by the distortion of the vanadium oxide polyhedron.
View Article and Find Full Text PDF1,3-Dithiolane as a Privileged Scaffold in Bioactive Derivatives: Chiral Resolution and Assignment of Absolute Configuration.
Int J Mol Sci
November 2024
Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
The 1,3-dithiolane ring has been recently rehabilitated as a chemical scaffold in drug design. However, for derivatives that are substituted in position 4, the introduction of a chiral center on the heterocycle demands the separation and characterization of the stereoisomers. We report the first chiral resolution and absolute configuration (AC) assignment for (1,4-dithiaspiro[4.
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