98%
921
2 minutes
20
Mono- and few-layer MoS were studied by three-dimensional electron diffraction (3D ED) showing distinctly different symmetry for crystals consisting of odd and even number of layers. Experimentally obtained intensity distributions along the relrods match qualitatively kinematically simulated data. Our findings allow to differentiate unambiguously between 1-, 2-, 3- 4- and 5-layers MoS crystals.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.micron.2021.103071 | DOI Listing |
Int J Radiat Biol
September 2025
Department of Geography, Nara Women's University, Nara, Japan.
Purpose: The number of oxygen vacancies in quartz measured by electron spin resonance (ESR) as the intensity of the E' center has been used to investigate the provenance of the sediments and has been found to be a good proxy in discussing the direction and intensity of the wind system in the past. While its temporal variations have been examined using marine sediments. The present study aimed to show that terrestrial sediments are also useful for such studies on climate change when it is continuous.
View Article and Find Full Text PDFAnal Chem
September 2025
RUSA-Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar (Aurangabad), Maharashtra 431 004, India.
In this study, a one-pot hydrothermal synthesis method was used to synthesize a novel gold-yttrium trimesic acid metal-organic framework (Au-Y-TMA MOF), demonstrating significant improvements over conventional single-metal MOFs, that is, yttrium trimesic acid (Y-TMA), in both supercapacitor applications and electrochemical antibiotic detection. The X-ray diffraction patterns of Au-Y-TMA confirmed the presence and impact of Au in the Y-TMA matrix, while field emission scanning electron microscopy (FE-SEM) images revealed a heterogeneous combination of gold nanoparticles (AuNPs) and Y-TMA, suggesting a nonuniform distribution and possible interaction. The developed half-cell supercapacitor exhibited a remarkable capacitance value of 1836 F/g at a current density of 5 A/g by galvanostatic charging-discharging (GCD) measurement.
View Article and Find Full Text PDFNanoscale Adv
August 2025
Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Dokuz Eylül İzmir Turkey.
Thin films of CuSn Gd S were prepared on soda-lime glass substrates using spin coating in a sulfur-rich environment. We investigated how doping CuSnS with gadolinium (Gd) affected its structural, morphological, and optical properties using X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), and UV-Vis spectroscopy. XRD showed that all samples had a polycrystalline monoclinic structure, while FE-SEM revealed a mix of spherical and polygon-shaped grains.
View Article and Find Full Text PDFACS Omega
September 2025
Research Laboratory in bionanomaterials, LPbio, Department of Chemistry, Federal University of Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil.
Herein, it is reported the synthesis of a niobium-based metal-organic framework (MOF), [Nb-(Bez-(COO))] , for the extraction of caffeine from surface waters. The material was synthesized and characterized by Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) analysis, which confirmed the coordination between the ligand (1,4-benzenodicarboxylic, (Bez-(COO))) and niobium (Nb) with a morphology composed of hexagonal rods, high crystallinity, and a surface area of 94.7 m g.
View Article and Find Full Text PDFACS Omega
September 2025
School of Chemical and Materials Engineering (SCME), National University of Sciences & Technology (NUST), H-12, Islamabad 44000, Pakistan.
In this study, we present an indigenous approach to enhancing the properties of Pb-(ZrTi)-O by synthesizing it from β-PbO obtained from spent lead-acid batteries. Initially, β-PbO, orthorhombic massicot, was produced by two-step heating, and 99.9% lead powder was derived from recovered lead-acid batteries at 700 °C.
View Article and Find Full Text PDF