LPG Sensing of Nanostructured Zinc Oxide and Zinc Niobate

被引：24

作者：

Yadav, B. C. ^{[1
]}

Srivastava, Richa ^{[1
]}

Yadav, Anuradha ^{[1
]}

Srivastava, Vachaspati ^{[2
]}

机构：

[1] Univ Lucknow, Dept Phys, Nanomat & Sensors Res Lab, Lucknow 226007, Uttar Pradesh, India

[2] GSI No Reg, Dept Mineral Phys, Lucknow 226024, Uttar Pradesh, India

来源：

SENSOR LETTERS | 2008年 / 6卷 / 05期

关键词：

LPG Sensor; ZnO Nanomaterial; Zinc Niobate; SEM and XRD;

D O I：

10.1166/sl.2008.m132

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper reports the comparative performance S of the LPG sensing properties of zinc oxide and zinc niobate nanomaterials synthesized through conventional precipitation route. X-ray Diffraction and Scanning Electron Microscopic studies have been performed. Nanosheets-like morphology of ZnO and nanobeads of ZnNb2O6 have been obtained. XRD patterns reveal that ZnNb2O6 is more crystalline than ZnO. The average particle size of ZnO is found to be 35 nm and for ZnNb2O6 is 45 nm. Variations in resistance with the exposure of gas through the sensing elements have been studied. Sensitivity and sensor response factors have been compared. Both sensing elements are sensitive to LPG but sensing element made of ZnNb2O6 is more sensitive over the entire range of observations.

引用

页码：714 / 718

页数：5

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