WO3 纳米材料的合成与表征。

Synthesis and characterization of WO3 nanomaterials.

机构信息

Sensors and Materials Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India.

出版信息

J Biomed Nanotechnol. 2011 Feb;7(1):156-7. doi: 10.1166/jbn.2011.1247.

DOI:10.1166/jbn.2011.1247

Abstract

This work reports a simple, quick and economical method to prepare WO3 nanomaterials. Prepared tungsten trioxide materials have been sintered at 700 degrees C for three hours. The material has been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). Crystallite size of the WO3 nanostructures obtained by Shearer's formula are between 12 and 72 nm and their grain size by SEM are from 20 to 105 nm. The humidity-sensitive electrical properties of the WO3 nanomaterial have been studied using d.c. measurements.

摘要

本工作报道了一种简单、快速和经济的方法来制备 WO3 纳米材料。制备的三氧化钨材料在 700°C 下烧结 3 小时。通过 X 射线衍射（XRD）、扫描电子显微镜（SEM）和能谱（EDS）对材料进行了研究。根据 Shearer 公式计算得到的 WO3 纳米结构的晶粒尺寸在 12 到 72nm 之间，SEM 测得的晶粒尺寸在 20 到 105nm 之间。通过直流测量研究了 WO3 纳米材料的湿度敏感电性能。