Back to Search
Start Over
Sol- gel synthesis of Ga2O3 nanorods and effect of precursor chemistry on their structural and morphological properties
- Source :
- Ceramics International. 44:19099-19105
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Synthesis of mono-crystalline Ga 2 O 3 Nanorods was done by sol-gel transformation of gallium(III) isopropoxide (Ga(OPr i ) 3 ). XRD studies were done to determine the planes and crystal structure of synthesized nanorods that showed the synthesis of β-Ga 2 O 3 (a) . TEM studies of synthesized Ga 2 O 3 confirmed the synthesis of monocrystalline β-Ga 2 O 3 nanorods. To study the effect of precursor chemistry and to determine role of precursor structures on the crystal structure, phase and morphology of the Ga 2 O 3 , a new modified precursor complex was synthesized. The reaction of Ga(OPr i ) 3 with N-phenylsalicylaldimine, [C 6 H 4 (OH)CH=N(C 6 H 5 )] in 1:1 M ratio yielded [{(H 5 C 6 )N = CH-C 6 H 4 O}Ga(OPr i ) 2 ]. The newly synthesized complex was characterized by elemental analyses, molecular weight measurement, FT-IR and NMR ( 1 H and 13 C) spectral studies. Spectral studies of the modified complex suggest the presence of bi-dentate mode of attachment of Schiff's base in the solution state. Sol-gel transformations of [{(H 5 C 6 )N = CH-C 6 H 4 O}Ga(OPr i ) 2 ] in organic medium, yielded γ-Ga 2 O 3 ( b ), as found by XRD studies. TEM image of the sample ( a ) revealed the formation of nano-rods of oxide with average diameter of ~100 nm whereas the TEM image of sample ( b ) showed presence of nano-sized particles of oxide with average particle size of 10 nm. Morphological and compositional studies of synthesized samples (a) and (b) were carried out using SEM and EDX. The method provides a possibility of large scale synthesis of dissimilar shaped and pure Ga 2 O 3 nanoparticles.
- Subjects :
- chemistry.chemical_classification
Materials science
Base (chemistry)
Process Chemistry and Technology
Oxide
Nanoparticle
chemistry.chemical_element
02 engineering and technology
Crystal structure
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Crystallography
chemistry.chemical_compound
chemistry
Materials Chemistry
Ceramics and Composites
Nanorod
Particle size
Gallium
0210 nano-technology
Sol-gel
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........2a06c77266b1d879ad2afb13bd5c590e