Fabrication of WO3 nanotube sensors and their gas sensing properties
Source abstract
Abstract
Abstract WO 3 nanotubes were synthesized using TeO 2 nanowire templates. Transmission electron microscopy revealed the nanotubes to have tube diameters, lengths, and wall thicknesses ranging from 100–200 nm, 3–4 μm, and 20–30 nm, respectively. The multiple networked WO 3 nanotube sensors showed responses of 144–677% in the NO 2 concentration range of 1–5 ppm at 300 °C. These responses were approximately double those observed for the WO 3 nanorod sensors over the same NO 2 concentration range. A model describing the gas sensing mechanism of WO 3 NTs is also proposed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Optical absorption and photoconductivity in the band edge of b-Ga2O310.1103/PhysRev.140.A316 ↗
2. H2S gas sensing properties of bare and Pd-functionalized CuO nanorods10.1016/j.snb.2011.11.006 ↗
3. Enhanced sensor response of Ni-doped SnO2 hollow spheres10.1016/j.snb.2010.12.001 ↗
4. Gas sensors based on one dimensional nanostructured metal-oxides: a review10.3390/s120607207 ↗
5. An ozone monitoring instrument based on the tungsten trioxide (WO3) semiconductor10.1016/j.snb.2005.04.049 ↗
6. Au-doped WO3-based sensor for NO2 detection at low, operating temperature10.1016/j.snb.2008.04.018 ↗
7. Pt clusters supported on WO3 for ethanol detection10.1016/j.snb.2010.03.017 ↗
8. Room temperature hydrogen and hydrocarbon sensors based on single nanowires of metal oxides10.1088/0022-3727/40/9/016 ↗
9. A nanowire WO3 humidity sensor integrated with micro-heater and inverting amplifier circuit on chip manufactured using CMOS-MEMS technique10.1016/j.snb.2006.10.055 ↗
10. Study of physical and chemical processes of H2 sensing of Pt-coated WO3 nanowire films10.1021/jp106460w ↗
11. Preparing large-scale WO3 nanowire-like structure for high sensitivity NH3 gas sensor through a simple route10.1016/j.cap.2010.11.002 ↗
12. Enhanced NO2 gas sensing properties of WO3 nanorods encapsulated with ZnO10.1007/s00339-012-7000-9 ↗
13. Fabrication and gas sensing performance of parallel assemblies of metal oxide nanotubes supported by porous aluminum oxide membranes10.1016/j.snb.2008.10.056 ↗
14. Williams · 1987
15. High-performance NO2 gas sensor based on ZnO nanorod grown by ultrasonic irradiation high-performance NO2 gas sensor based on ZnO nanorod grown by ultrasonic irradiation10.1016/j.snb.2009.06.031 ↗
16. Effect of indium-doped SnO2 nanoparticles on NO2 gas sensing properties10.1016/j.snb.2007.03.033 ↗
17. Controlled growth and sensing properties of In2O3 nanowires10.1021/cg070209p ↗
18. Sensors for the nitrogen oxides, NO2, NO and N2O, based on In2O3 and WO3 nanowires10.1007/s00339-006-3707-9 ↗
19. In2O3 nanowires as chemical sensors10.1063/1.1559438 ↗
20. Detection of NO2 down to ppb levels using individual and multiple In2O3 nanowire devices10.1021/nl0489283 ↗
21. Facile synthesis and NO2 gas sensing of tungsten oxide nanorods assembled microspheres10.1016/j.snb.2009.04.059 ↗
22. Synthesis of SnO2–ZnO core–shell nanofibers via a novel two-step process and their gas sensing properties10.1088/0957-4484/20/46/465603 ↗
23. Gas sensing properties of thermally evaporated lamellar MoO310.1016/j.snb.2009.11.007 ↗
24. Processing–microstructure–properties correlation of ultrasensitive gas sensors produced by electrospinning10.1021/cm802498c ↗
25. Conductance, work function and catalytic activity of SnO2-based gas sensors10.1016/0925-4005(91)80007-7 ↗
26. Co and NO2 gas sensitivity of nanocrystalline tin dioxide thin films doped with Pd, Ru and Rh10.1016/S0928-4931(02)00068-1 ↗