Synthesis and characterization of WO3 spherical nanoparticles and nanorods

被引：57

作者：

Adhikari, Sangeeta ^{[1
]}

Sarkar, Debasish ^{[1
]}

Maiti, Himadri Sekhar ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Ceram Engn, Rourkela 769008, India

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 49卷

关键词：

Nanostructures; Semiconductors; Chemical synthesis; Electron microscopy; Infrared spectroscopy; TUNGSTEN-OXIDE FILMS; OPTICAL-PROPERTIES;

D O I：

10.1016/j.materresbull.2013.08.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simple and new wet chemical routes are adopted for the synthesis of tungsten trioxide (WO3) nanopowders having two different morphologies such as spherical and rod-like. Acid catalyzed exothermic reaction and a structure directing reagent have been used to control the formation of spherical and rod shaped nanoparticles, respectively. Thermal analysis and FTIR spectral data have been used to confirm the formation of the intermediate and the ultimate reaction products. X-ray and Raman spectroscopic data indicate the monoclinic structure of both forms of the particles. Rod shaped WO3 particles exhibit better crystallinity and low specific surface area compared to those exhibited by spherical particles. Band gaps are found to be nearly identical irrespective of the morphology. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：325 / 330

页数：6

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