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Effect of strain on the electronic structure and polaronic conductivity of LiFePO.
Phys Chem Chem Phys
January 2025
Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India.
Improving the electronic properties of active cathode materials can significantly impact the design of rechargeable batteries. In this study, we investigated the influence of micro-strain on the structural and electronic properties of LiFePO (LFP) by performing combined core-level spectroscopy analysis and electrical conductivity measurements. High-resolution X-ray diffraction measurements, followed by Rietveld refinement analysis, revealed an increase in unit cell parameters due to the enhanced micro-strain in the lattice structure.
View Article and Find Full Text PDFThe synthesis and structural aspects of the perbromo-functionalised thiaboranes -SBBr ( = 5, 9, 11): the solid-state structure of the octahedral -SBBr, governed by strong dihalogen contacts.
Chem Commun (Camb)
January 2025
Institute of Inorganic Chemistry, Czech Academy of Sciences, 250 68 Husinec-Řež, Czech Republic.
Co-pyrolysis reactions of BBr with SBr at 350 °C yielded the brominated thiaboranes -SBBr (1), -1-SBBr (2) and -SBBr (3), confirmed by high-resolution mass spectrometry, experimental and computational B NMR spectroscopy. The strong Br(σ-hole)⋯Br(ring) attraction has been the decisive energy contribution in the crystal of 1.
View Article and Find Full Text PDFIsolation and identification of two novel PDE-5 inhibitors illegally added to pressed candies.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
January 2025
Shanxi Key Laboratory of Food and Drug Safety Prevention and Control, Inspection and Testing Center of Shanxi Province, Taiyuan, Shanxi, China.
Two novel phosphodiesterase 5 (PDE-5) inhibitors were detected in pressed candy using high-performance liquid chromatography (HPLC)-diode array detection. Following extraction with acetonitrile and sonication, the compounds were isolated and purified semi-preparative liquid chromatography. Structural characterisation was achieved through high-resolution mass spectrometry (HRMS) and nuclear magnetic resonance (NMR) spectroscopy.
View Article and Find Full Text PDFPick-and-Place Transfer of Arbitrary-Metal Electrodes for van der Waals Device Fabrication.
ACS Nano
January 2025
School of Physics and Astronomy, Monash University, Clayton, Victoria 3800, Australia.
Van der Waals electrode integration is a promising strategy to create nearly perfect interfaces between metals and 2D materials, with advantages such as eliminating Fermi-level pinning and reducing contact resistance. However, the lack of a simple, generalizable pick-and-place transfer technology has greatly hampered the wide use of this technique. We demonstrate the pick-and-place transfer of prefabricated electrodes from reusable polished hydrogenated diamond substrates without the use of any sacrificial layers due to the inherent low-energy and dangling-bond-free nature of the hydrogenated diamond surface.
View Article and Find Full Text PDFModeling maize aflatoxins and fumonisins in a Tanzanian smallholder system: Accounting for diverse risk factors improves mycotoxin models.
PLoS One
January 2025
Sustainability and Environmental Education, Goshen College, Goshen, IN, United States of America.
Human exposure to mycotoxins is common and often severe in underregulated maize-based food systems. This study explored how monitoring of these systems could help to identify when and where outbreaks occur and inform potential mitigation efforts. Within a maize smallholder system in Kongwa District, Tanzania, we performed two food surveys of mycotoxin contamination at local grain mills, documenting high levels of aflatoxins and fumonisins in maize destined for human consumption.
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