Coprecipitation-assisted hydrothermal synthesis of PLZT hollow nanospheres

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2010.04.010· OSTI ID:22207348

Zhu, Renqiang ^[1]; Zhu, Kongjun ^[1]; Qiu, Jinhao; Bai, Lin; Ji, Hongli ^[1]

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1. The Aeronautic Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China)

Lanthanum-modified lead zirconate titanate Pb{sub 1-x}La{sub x}(Zr{sub 1-y}Ti{sub y})O{sub 3} (PLZT) hollow nanospheres have been successfully prepared via a template-free hydrothermal method using the well-mixed coprecipitated precursors and the KOH mineralizer. The structure, composition, and morphology of the PLZT hollow nanospheres were characterized by XRD (X-ray diffraction), ICP (inductive coupled plasma emission spectrometer), FTIR (Fourier transform infrared spectra), TG/DTA (thermogravimetric analysis and differential thermal analysis), TEM (transmission electron microscopy) and SEAD (selected area diffraction). The results show that the composition and the morphology control of the PLZT products are determined by the KOH concentration. The PLZT hollow nanospheres with uniform size of about 4 nm were synthesized in the presence of 5 M KOH. The crystalline nanoparticles can be prepared at dilute KOH, in contrast to the amorphous powders prepared at concentrated KOH. Formation mechanisms of the PLZT hollow nanospheres are also discussed.

• OSTI ID: 22207348
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 8 Vol. 45; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
DIFFERENTIAL THERMAL ANALYSIS
FOURIER TRANSFORMATION
HYDROTHERMAL SYNTHESIS
INFRARED SPECTRA
NANOSTRUCTURES
PLZT
POTASSIUM HYDROXIDES
THERMAL GRAVIMETRIC ANALYSIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION