Synthesis of nanocrystalline Y2O3 in a specially designed atmospheric pressure radio frequency thermal plasma reactor

被引：12

作者：

Dhamale, G. D. ^{[1
]}

Mathe, V. L. ^{[1
]}

Bhoraskar, S. V. ^{[1
]}

Sahasrabudhe, S. N. ^{[2
]}

Ghorui, S. ^{[2
]}

机构：

[1] Univ Pune, Dept Phys, Pune 411007, Maharashtra, India

[2] Bhabha Atom Res Ctr, Div Laser & Plasma Technol, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2015年 / 17卷 / 10期

关键词：

Yttria nanoparticles; Nanosynthesis; RF plasma; Phase formation; Thermo-luminescence; Defect centers; Functional nanostructures; YTTRIUM-OXIDE; ALUMINA NANOPARTICLES; METASTABLE PHASES; SILICON-CARBIDE; GAS-PHASE; PARTICLES; POWDERS; ULTRAFINE; LUMINESCENCE; PHOSPHOR;

D O I：

10.1007/s11051-015-3222-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Synthesis of yttrium oxide nanoparticles in a specially designed radio frequency thermal plasma reactor is reported. Good crystallinity, narrow size distribution, low defect state concentration, high purity, good production rate, single-step synthesis, and simultaneous formation of nanocrystalline monoclinic and cubic phases are some of the interesting features observed. Synthesized particles are characterized through X-ray diffraction, transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, thermo-luminescence (TL), and Brunauer-Emmett-Teller surface area analysis. Polymorphism of the nanocrystalline yttria is addressed in detail. Synthesis mechanism is explored through in-situ emission spectroscopy. Post-synthesis environmental effects and possible methods to eliminate the undesired phases are probed. Defect states are investigated through the study of TL spectra.

引用

页数：15

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