AI Article Synopsis
- Researchers have synthesized alkaline earth selenate nanoparticles (MSeO) using a micro emulsion method for the first time, focusing on compounds with calcium, strontium, and barium.
- The phase purity of these nanoparticles was confirmed through X-ray diffraction (XRD), and further analysis was conducted using raster electron microscopy (REM) and dynamic light scattering (DLS).
- The nanoparticles were doped with europium (Eu), resulting in luminescent materials that emit strong red light, and low temperature measurements helped reveal the symmetry of the Eu ions in the structure.
Article Abstract
Up to now, no selenate nanoparticles have been described even though much research has been done on respective oxidic compounds such as sulfates and phosphates. For the first time, alkaline earth selenates of the composition MSeO (M = Ca, Sr, Ba) were synthesized as nanoparticles or nanorods as described in this publication. For this purpose, a micro emulsion method was applied using CTAB as a surfactant. Using X-ray diffraction measurements (XRD) phase purity of the materials could be proven. Furthermore, the nanoparticles were analyzed by raster electron microscopy (REM) and dynamic light scattering (DLS) measurements. Finally, the products were doped with small amounts of Eu to obtain luminescent materials. Successful doping was demonstrated by luminescence investigations in the region of 18 000 to 14 000 cm (550-715 nm). Incorporation of Eu led to strong red-emitting nanoparticles. Low temperature measurements at 10 K allowed conclusions about the site symmetry of Eu ions located on the alkaline earth sites.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10339161 | PMC |
| http://dx.doi.org/10.1039/d3ra01669b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparison of In Situ and Postsynthetic Formation of MOF-Carbon Composites as Electrocatalysts for the Alkaline Oxygen Evolution Reaction (OER).
Molecules
January 2025
Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany.
Mixed-metal nickel-iron, NiFe materials draw attention as affordable earth-abundant electrocatalysts for the oxygen evolution reaction (OER). Here, nickel and mixed-metal nickel-iron metal-organic framework (MOF) composites with the carbon materials ketjenblack (KB) or carbon nanotubes (CNT) were synthesized in situ in a one-pot solvothermal reaction. As a direct comparison to these in situ synthesized composites, the neat MOFs were postsynthetically mixed by grinding with KB or CNT, to generate physical mixture composites.
View Article and Find Full Text PDFOperando Nanoscale Characterization Reveals Fe Doping of Ni Oxide Enhances Oxygen Evolution Reaction via Fragmentation and Formation of Dual Active Sites.
Angew Chem Int Ed Engl
January 2025
Max Planck-EPFL Laboratory for Molecular Nanoscience, Institut de Physique de la Matière Condensée, École Polytechnique Fédérale de Lausanne, CH 1015 Lausanne, Switzerland, 1005, Lausanne, SWITZERLAND.
Efficient catalytic water splitting demands advanced catalysts to improve the slow kinetics of the oxygen evolution reaction (OER). Earth-abundant transition metal oxides show promising OER activity in alkaline media. However, most experimental information available is either from post-mortem studies or in-situ space-averaged X-ray techniques in the micrometer range.
View Article and Find Full Text PDFDiversity and Functional Insights into Endophytic Fungi in Halophytes from West Ordos Desert Ecosystems.
J Fungi (Basel)
January 2025
Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010010, China.
Arid desert regions are among the harshest ecological environments on Earth. Halophytes, with their unique physiological characteristics and adaptability, have become the dominant vegetation in these areas. Currently, research on halophytes in this region is relatively limited, particularly concerning studies related to their root endophytic fungi, which have been rarely reported on.
View Article and Find Full Text PDFDual Lone Pair Strategy for High Birefringence in Antimony(III)-Based Tellurite Sulfates with Short-Wave UV Transparency.
Inorg Chem
January 2025
College of Chemistry, Sichuan University, Chengdu 610065, P. R. China.
We present two novel antimony(III)-based tellurite sulfate crystals, Sb(TeO)(SO)-1̅ (I) and Sb(TeO)(SO)-2/ (II), synthesized using a dual lone pair strategy that incorporates Sb and Te ions into a sulfate framework. This approach significantly enhances the birefringence of these compounds, with values of 0.11 and 0.
View Article and Find Full Text PDFCovalent organic frameworks for metal ion separation: Nanoarchitectonics, mechanisms, applications, and future perspectives.
Adv Colloid Interface Sci
January 2025
Beijing National Laboratory for Molecular Sciences, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. Electronic address:
Covalent organic frameworks (COFs) are a class of porous crystalline materials with high surface areas, tunable pore sizes, and customizable surface chemistry, making them ideal for selective metal ion separation. This review explores the nanoarchitectonics, mechanisms, and applications of COFs in metal ion separation. We highlight the diverse bonding types (e.
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!