Gold coated nanostructured molybdenum oxide mercury vapour quartz crystal microbalance sensor

被引：6

作者：

Dhawan, Deepak ^{[1
]}

Bhargava, Suresh ^{[2
]}

Tardio, James ^{[2
]}

Wlodarski, Wojtek ^{[1
]}

Kalantar-Zadeh, Kourosh ^{[1
]}

机构：

[1] RMIT Univ, Sensor Technol Lab, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia

[2] RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia

来源：

SENSOR LETTERS | 2008年 / 6卷 / 01期

关键词：

QCM; mercury; MoO3; nanostructure; gold;

D O I：

10.1166/sl.2008.031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel mercury vapour sensor based on a quartz crystal microbalance has been developed using gold coated nano templates of molybdenum oxide. The molybdenum oxide layer was characterised using scanning electron microscopy and X-ray diffraction methods. Characterization data revealed that the molybdenum oxide nano templates consisted of hexagonal platelets which are an orthorhombic form of molybdenum oxide. Gold was used as a selective layer due to its high affinity to mercury and inertness to interfering gases. The sensor had a mercury response approximately 85% larger than that of a commercial gold sensor.

引用

页码：231 / 236

页数：6

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