Morphology and structure features of ZnAl{sub 2}O{sub 4} spinel nanoparticles prepared by matrix-isolation-assisted calcination

Journal Article · Wed Jan 14 23:00:00 EST 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.10.009· OSTI ID:22420740

Du, Xuelian ^[1]; Li, Liqiang; Zhang, Wenxing; Chen, Wencong ^[1]; Cui, Yuting ^[2]

---

1. Physics Department, Shangqiu Normal University, Shangqiu 476000 (China)
2. Physics Department, Chongqing Normal University, Chongqing 404100 (China)

Graphical abstract: The substrate ZnO as the isolation medium is effective in preventing the sintering and agglomeration of ZnAl{sub 2}O{sub 4} nanoparticles, and it also prevents their contamination. High purity, well-dispersed, and single-crystal ZnAl{sub 2}O{sub 4} nanoparticles with 3.72 eV band gap were obtained. - Abstract: Well-dispersed ZnAl{sub 2}O{sub 4} spinel nanoparticles with an average crystalline size of 25.7 nm were synthesized successfully and easily by polymer-network and matrix-isolation-assisted calcination. The product microstructure and features were investigated by X-ray diffractometry, thermogravimetric and differential thermal analysis, Fourier transform-infrared spectroscopy, N{sub 2} adsorption–desorption isotherms, and energy dispersive X-ray spectra. The morphology and optical performance of the as-prepared ZnAl{sub 2}O{sub 4} nanoparticles were characterized by scanning electron microscope, transmission electron microscopy, and photoluminescence spectrometer. Experimental results indicate that excess ZnO acted as the isolation medium is effective in preventing the sintering and agglomeration of ZnAl{sub 2}O{sub 4} nanoparticles, and it also prevents their contamination. Then, high purity and well-dispersed ZnAl{sub 2}O{sub 4} nanoparticles with single-crystal structure were obtained.

• OSTI ID: 22420740
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 61; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADSORPTION
AGGLOMERATION
ALUMINATES
CALCINATION
DESORPTION
DIFFERENTIAL THERMAL ANALYSIS
MICROSTRUCTURE
MONOCRYSTALS
NANOPARTICLES
NANOSTRUCTURES
PHOTOLUMINESCENCE
POLYMERS
SCANNING ELECTRON MICROSCOPY
SEMICONDUCTOR MATERIALS
SUBSTRATES
THERMAL GRAVIMETRIC ANALYSIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTRA
ZINC OXIDES