An x-ray spectrometer devoted to dynamical studies of transient systems using the x-ray absorption fine spectroscopy technique is presented in this article. Using an ultrafast laser-induced x-ray source, this optical device based on a set of two potassium acid phthalate conical crystals allows the extraction of x-ray absorption near-edge spectroscopy structures following the Al absorption K edge. The proposed experimental protocol leads to a measurement of the absorption spectra free from any crystal reflectivity defaults and shot-to-shot x-ray spectral fluctuation. According to the detailed analysis of the experimental results, a spectral resolution of 0.7 eV rms and relative fluctuation lower than 1% rms are achieved, demonstrated to be limited by the statistics of photon counting on the x-ray detector.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/1.3441983 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tailoring a High Loading Atomic Zinc with Weak Binding to Sodium Toward High-Energy Sodium Metal Batteries.
Small
January 2025
Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou, Fujian, 350117, China.
Single-atom materials provide a platform to precisely regulate the electrochemical redox behavior of electrode materials with atomic level. Here, a multifield-regulated sintering route is reported to rapidly prepare single-atom zinc with a very high loading mass of 24.7 wt.
View Article and Find Full Text PDFSafety Study and Compositional Analysis of the Svarnvir-IV Tablet With Special Reference to Its Therapeutic Utility in SARS-CoV-2.
Cureus
December 2024
School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, IND.
Aim Traditional Ayurvedic herbo-mineral medicines have proven their potential in managing COVID-19. Cell-based assays of the Svarnvir-IV tablet demonstrated the virucidal activity against SARS-CoV-2 and its therapeutic action, along with safety in cytotoxicity, has been proved. In the present study, in vivo, safety profile and compositional analysis of the Svarnvir-IV tablet were performed.
View Article and Find Full Text PDFEngineering performance and environmental assessment of sustainable concrete incorporating nano silica and metakaolin as cementitious materials.
Sci Rep
January 2025
School of Civil Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu, 600127, India.
The carbon footprint associated with cement production, coupled with depletion of natural resources and climate change, underscores the need for sustainable alternatives. This study explores the effect of metakaolin (MK) and nano-silica (NS) on concrete's engineering performance and environmental impact. Initially, compressive, tensile, and flexural strength tests, along with durability assessments like water absorption, sorptivity, rapid chloride permeability, and resistance to acid and sulphate attacks, were conducted.
View Article and Find Full Text PDFEffect of freeze-thaw processes on the water-absorption ability and mechanical properties of hydrogel pads with chitosan/poly(vinyl alcohol) based on citrate crosslinks.
Food Chem
January 2025
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China. Electronic address:
In this study, the effect of freeze-thaw (F-T) processes on the mechanical and water absorption performance of citrate cross-linked chitosan/poly(vinyl alcohol) hydrogel pads was evaluated. An excellent cross-linking of 4 % (w/w) citrate was indicated by enhanced peak strength in Fourier-transform infrared spectroscopy and X-ray diffraction patterns, which was applied to the subsequent F-T process. The results in the deswelling rate, water contact angle, and relaxation time of samples exhibited a tendency to decrease and then increase with increasing F-T cycles, reaching a minimum of 0.
View Article and Find Full Text PDFHigh-entropy NASICON-Type LiAlTiZrSnTa(PO) with high electrochemical stability for lithium-ion batteries.
J Colloid Interface Sci
December 2024
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300044, Taiwan; High Entropy Materials Center, Hsinchu 300044, Taiwan. Electronic address:
LiAlTi (PO) (LATP) is a promising NASICON-type solid electrolyte for all-solid-state lithium-ion batteries (ASSLIBs) owing to its high ionic conductivity, low cost, and stability in ambient atmosphere. However, the electrochemical stability of LATP suffers upon contact with lithium metals, resulting in a reduction of Ti to Ti in its structure. This limitation necessitates interface modification processes, hindering its use in lithium-ion batteries.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!