Combined Gas-Liquid Plasma Source for Nanoparticle Synthesis

被引：3

作者：

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

Kiris, V. V. ^{[1
]}

Nevar, A. A. ^{[1
]}

Nedelko, M. I. ^{[1
]}

Tarasenko, N. V. ^{[1
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Inst Phys, 68 Nezavisimost Ave, Minsk 220072, BELARUS

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2016年 / 83卷 / 04期

关键词：

electrical discharge in liquid; synthesis of nanoparticles; spectroscopy; electron density and temperature; pressure; GENERATION; DISCHARGE;

D O I：

10.1007/s10812-016-0341-y

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A gas-liquid plasma source for the synthesis of colloidal nanoparticles by spark erosion of the electrode material was developed and allowed the particle synthesis regime to be varied over a wide range. The source parameters were analyzed in detail for the electrical discharge conditions in water. The temperature, particle concentration, and pressure in the discharge plasma were estimated based on spectroscopic analysis of the plasma. It was found that the plasma parameters did not change signifi cantly if the condenser capacitance was increased from 5 to 20 nF. Purging the electrode gap with argon reduced substantially the pressure and particle concentration. Signifi cant amounts of water decomposition products in addition to electrode elements were found in the plasma in all discharge regimes. This favored the synthesis of oxide nanoparticles.

引用

页码：643 / 649

页数：7

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