Study of Annealing Effects on Ag2O Nanoparticles Generated by Electrochemical Spark Process

被引：13

作者：

Singh, Purushottam Kumar ^{[1
]}

Bishwakarma, Harish ^{[1
]}

Shubham ^{[1
]}

Das, Alok Kumar ^{[1
]}

机构：

[1] Indian Inst Technol ISM, Dept Mech Engn, Dhanbad 826004, Bihar, India

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2017年 / 46卷 / 10期

关键词：

Silver oxide nanoparticles; FTIR; FESEM; band gap; ARC-DISCHARGE METHOD; SILVER NANOPARTICLES; OXIDE; FILMS; ELECTRODEPOSITION; NANOWIRES; OXIDATION; CATALYST; LIQUID; SYSTEM;

D O I：

10.1007/s11664-017-5614-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe a green process for the generation of silver oxide (Ag2O) nanoparticles from silver material through an electrochemical spark (discharge) process. The annealing operation was carried out on the produced nanoparticles to observe changes in the particle morphology and different properties. Ag2O nanoparticles were characterized by x-ray diffraction analysis, Fourier-transform infrared spectroscopy, ultraviolet-visible spectroscopy, field emission scanning electron microscopy, energy-dispersive x-ray (EDX) spectroscopy and high-resolution transmission electron microscopy. With the rise in annealing temperature, the average crystal size of Ag2O nanoparticles was increased proportionally and the shape was also changed. Plate-type structures were attained with high annealing temperatures. The EDX result confirmed the presence of silver and oxygen atoms. The band gap of the nanoparticle samples, which were produced by direct current and pulsating direct current, was noted to be 1.6 eV and 1.9 eV, respectively.

引用

页码：5715 / 5727

页数：13

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