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Updated: Feb 7, 2026

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
Published on: February 10, 2023
Interface-Assisted Synthesis of Single-Crystalline ScF3 Microtubes
Larisa B Gulina1, Valeri P Tolstoy1, Yuri V Petrov1
1St. Petersburg State University , 7-9 Universitetskaya nab. , St. Petersburg 199034 , Russia.
Abstract:
Scandium fluoride (ScF3) microtubes with nanoscale wall thickness were for the first time successfully synthesized by an interface-assisted technique at the surface of a scandium nitrate aqueous solution without the addition of any surfactant as a result of interaction with hydrofluoric acid from the gaseous phase in only 30 min. X-ray diffraction analysis, scanning electron microscopy, helium ionic microscopy, transmission electron microscopy (TEM), and high-resolution TEM (HRTEM) were used to examine the morphology and crystal structure of ScF3 microtubes. The results show that the ScF3 microtube is single-crystalline and has a hexagonal structure. A hypothetical model of thin-walled microtube formation is proposed.
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