Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The hexagonal and monoclinic phase LaPO and LaPO:Eu nanostructures have been controllably synthesized by a citrate-induced hydrothermal process at 100 °C. The crystal growth of LaPO nanostructures was investigated, and the phase transformation of nanostructured LaPO was systematically studied by varying the citrate concentration, pH value and reaction temperature. When 0.8 mmol of citrate was added into the reaction system, the hexagonal phase LaPO transformed into the monoclinic phase. High concentrations of citrate would lead to the formation of hexagonal phase LaPO. The photoluminescence properties of the monoclinic phase LaPO:Eu prepared using a citrate-induced process demonstrate that the electric dipole transition (D → F) is stronger than the magnetic dipole transition (D → F), which indicated that Eu is in a site with no inversion center. The strongest emission peak of hexagonal phase LaPO:Eu comes from D → F. Furthermore, the citrate-induced hexagonal phase LaPO:Eu has a stronger emission intensity than the hexagonal phase LaPO:Eu prepared not using a citrate-induced process.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9088194 | PMC |
| http://dx.doi.org/10.1039/c8ra07260d | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Emergence of Robust 1D Atomic and Electronic Textures in Mn Ultrathin Films via Antiferromagnet-Ferromagnet Interfaces.
Small
September 2025
Department of Materials Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
1D electronic structures on 2D crystalline surfaces are crucial for investigating low-dimensional quantum phenomena and enabling the development of dimensionally engineered nanodevices. However, the inherent periodic symmetry of 2D atomic lattices generally leads to delocalized electronic band extending across the surface, making the creation of periodic 1D electronic states a significant challenge. Here, robust 1D electronic ordering is demonstrated in ultrathin Mn films grown on an atomically flat, non-reconstructed body-centered cubic Fe substrate.
View Article and Find Full Text PDFBaNiO Electrocatalysts for Oxygen Evolution Reaction: The Role of Synthetic Methods.
Inorg Chem
September 2025
Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid 28040, Spain.
BaNiO and other Ba-Ni-O-related phases are among the most active nonprecious electrocatalysts toward the oxygen evolution reaction (OER) in basic media, but the relationships between the synthesis conditions and the electrochemical properties have not been thoroughly investigated, which prevents further optimization of the materials' performance. In this work, we compare the electrocatalytic activities of hexagonal perovskite BaNiO prepared by three different synthesis methods: sol-gel, metal nitrate decomposition, and molten salts. We show by combining atomic-scale imaging and spectroscopic techniques how the choice of the synthesis method influences the chemical, morphological, and microstructural features of the materials.
View Article and Find Full Text PDFCryogen-free variable-temperature Kelvin probe force microscopy for probing local chemical potential in van der Waals heterostructures.
Rev Sci Instrum
September 2025
Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea.
We report the development of a variable-temperature Kelvin probe force microscopy (KPFM) system based on a Gifford-McMahon cryocooler, which enables stable and highly sensitive operation across a broad temperature range. The system integrates a custom-designed phase-locked loop, automatic gain control, and compact passive vibration isolation stages, effectively suppressing mechanical vibrations intrinsic to cryostats. We demonstrate the system's performance using a monolayer graphene (MLG) device encapsulated in hexagonal boron nitride, serving as a benchmark platform to validate spatial resolution and CPD sensitivity.
View Article and Find Full Text PDFCharacterization and potential novel applications of zinc-based traditional medicine, Yashad Bhasma.
J Ayurveda Integr Med
August 2025
Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, U.P., India.
Background: Yashad Bhasma (YB), the incinerated metal ash of zinc, has been used for centuries in Ayurveda to address a variety of conditions, including eye diseases, diabetes mellitus, anemia, respiratory illnesses, etc. OBJECTIVE: This research aimed to synthesize and characterize YB and to evaluate its potential antimicrobial, antioxidant, and anti-angiogenic activities.
Materials And Methods: In this study, YB is synthesized by optimizing the traditional method.
Photocatalytic degradation of Rhodamine B dye over Ni-Cd doped and co-doped ZnO nanoparticles.
Sci Rep
August 2025
Department of Chemistry, College of Science, King Faisal University, 31982, Al-Hassa, Saudi Arabia.
This study demonstrates the photocatalytic degradation efficiency of doped NiZnO and co-doped CdNiZnO NPs. Initially, ZnO NPs with a unique mesoporous ellipsoidal morphology were synthesized by simple precipitation and calcination. Powder X-ray diffraction revealed the formation of a hexagonal phase of the wurtzite structure.
View Article and Find Full Text PDF