Enhanced formic acid gas-sensing property of WO3 nanorod bundles via hydrothermal method
Author(s)
Lu, Na
Gao, Xiaoqing
Yang, Chao
Xiao, Feng
Wang, Jide
Su, Xintai
Griffith University Author(s)
Year published
2016
Metadata
Show full item recordAbstract
WO3 nanorod bundles were prepared via a facile hydrothermal method with Na2SO4 as structure directing agent. Field-emission scanning electron microscopy (FESEM) and transmission electronic microscopy (TEM) images indicate that the WO3 nanorod bundles consist of hierarchically nanostructured bundles assembled with smaller nanorod subunits. Furthermore, the gas-sensing properties of the as-prepared WO3 were tested to a series of organic gases. The WO3 nanorod bundles display a significantly better sensing performance (100 ppm formic acid, Ra/Rg = 51.3) than commercial WO3 (100 ppm formic acid, Ra/Rg = 1.8) for the detection ...
View more >WO3 nanorod bundles were prepared via a facile hydrothermal method with Na2SO4 as structure directing agent. Field-emission scanning electron microscopy (FESEM) and transmission electronic microscopy (TEM) images indicate that the WO3 nanorod bundles consist of hierarchically nanostructured bundles assembled with smaller nanorod subunits. Furthermore, the gas-sensing properties of the as-prepared WO3 were tested to a series of organic gases. The WO3 nanorod bundles display a significantly better sensing performance (100 ppm formic acid, Ra/Rg = 51.3) than commercial WO3 (100 ppm formic acid, Ra/Rg = 1.8) for the detection of formic acid. The results demonstrated that the WO3 nanorod bundles have a potential application in formic acid sensors.
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View more >WO3 nanorod bundles were prepared via a facile hydrothermal method with Na2SO4 as structure directing agent. Field-emission scanning electron microscopy (FESEM) and transmission electronic microscopy (TEM) images indicate that the WO3 nanorod bundles consist of hierarchically nanostructured bundles assembled with smaller nanorod subunits. Furthermore, the gas-sensing properties of the as-prepared WO3 were tested to a series of organic gases. The WO3 nanorod bundles display a significantly better sensing performance (100 ppm formic acid, Ra/Rg = 51.3) than commercial WO3 (100 ppm formic acid, Ra/Rg = 1.8) for the detection of formic acid. The results demonstrated that the WO3 nanorod bundles have a potential application in formic acid sensors.
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Journal Title
Sensors and Actuators, B: Chemical
Volume
223
Subject
Physical Chemistry not elsewhere classified
Optical Physics
Analytical Chemistry
Materials Engineering