Synthesis of Eu₂O₃ Nanotube Arrays through a Facile Sol−Gel Template Approach

Abstract

Eu2O3 nanotubes have been successfully fabricated by an improved sol-gel template method within the nanochannels of porous anodic alumina templates. The morphology, structure, and composition of the nanotubes were characterized by means of X-ray diffraction techniques, scanning electron microscope, transmission electron microscopy, and selected-area electron diffraction. The results show that the Eu2O3 nanotubes are polycrystalline with a cubic structure. The outer diameter of nanotubes is 50-80 nm, and the thickness of the tube wall is about 5 nm. The mechanism of nanotube formation was discussed.

Fabrication of SiC-Based Ceramic Microstructures from Preceramic Polymers with Sacrificial Templates and Lithographic Techniques-A Review

“…34 Recently, many types of organic materials peptide, polypyrrole and inorganic materials nitride, sulfide, oxide, carbide have been considered in the preparation of tubular structures. 35 Different types of tubular SiC nanostructures were synthesized since Dai et al first reported the preparation of SiC nanotubes using a shape memory synthesis method. 36,37 Most preparation methods are based on a carbothermal reduction andor chemical vapor deposition, resulting in randomly dispersed nanotube structures.…”

Morphology‐ and Color‐Tunable Bright Fibers with High Concentration of CdTe Nanocrystals Assembled through Sol–Gel Reaction

“…Inorganic fibers have so far been prepared using a variety of approaches including high-temperature, [10] reverse micelle synthesis, [11] hydrothermal, [12] and template methods based on either hard mesoporous materials (hard templates) [13] or soft selforganized nanostructures (soft templates). [14] Small organic molecules (for example, 2,4,5-triphenylimidazole) have been used as a soft template to prepare single crystalline submicrotubes by using non-covalent intermolecular interactions, such as hydrogen bonding, p-p interactions, van der Waals contacts, and charge transfer interactions.…”

Fabrication of SiC-based Ceramic Microstructures from Preceramic Polymers with Sacrificial Templates and Softlithography Techniques

“…Recently, many types of organic materials (peptide, polypyrrole) and inorganic materials (nitride, sulfide, oxide, carbide) have been considered in the preparation of tubular structures (Wu et al, 2004). Different types of tubular SiC nanostructures were synthesized since Dai et al first reported the preparation of SiC nanotubes using a shape memory synthesis method (Dai et al, 1995, Keller et al, 2003.…”