Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance
Hexagonal molybdenum trioxide (h-MoO<sub>3</sub>) was synthesized by microwave-assisted hydrothermal method, allowing an ultrafast growth of unidimensional microrods with well-faceted morphology. The crystalline structure of this metastable phase was confirmed by X-ray diffraction (XRD)...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Surfaces |
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| Online Access: | https://www.mdpi.com/2571-9637/4/1/2 |
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| author | Giovana T. Santos Anderson A. Felix Marcelo O. Orlandi |
| author_facet | Giovana T. Santos Anderson A. Felix Marcelo O. Orlandi |
| author_sort | Giovana T. Santos |
| collection | DOAJ |
| description | Hexagonal molybdenum trioxide (h-MoO<sub>3</sub>) was synthesized by microwave-assisted hydrothermal method, allowing an ultrafast growth of unidimensional microrods with well-faceted morphology. The crystalline structure of this metastable phase was confirmed by X-ray diffraction (XRD) and Raman spectroscopy. Scanning electron microscopy (SEM) showed that hexagonal microrods can be obtained in one minute with well-defined exposed facets and the fine control of morphology. Sensing tests of the acetone biomarker revealed that the h-MoO<sub>3</sub> microrods exhibit, at low ppm level, good sensor signal, fast response/recovery times, selectivity to different interferent gases, and a lower detection limit of 400 ppb. |
| first_indexed | 2024-03-10T13:45:29Z |
| format | Article |
| id | doaj.art-5d301397cd1e42a2a3e589c322cd439d |
| institution | Directory Open Access Journal |
| issn | 2571-9637 |
| language | English |
| last_indexed | 2024-03-10T13:45:29Z |
| publishDate | 2020-12-01 |
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| record_format | Article |
| series | Surfaces |
| spelling | doaj.art-5d301397cd1e42a2a3e589c322cd439d2023-11-21T02:37:58ZengMDPI AGSurfaces2571-96372020-12-014191610.3390/surfaces4010002Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing PerformanceGiovana T. Santos0Anderson A. Felix1Marcelo O. Orlandi2Department of Engineering, Physics and Mathematics, Chemistry Institute, São Paulo State University (UNESP), Araraquara, São Paulo 14800-060, BrazilDepartment of Engineering, Physics and Mathematics, Chemistry Institute, São Paulo State University (UNESP), Araraquara, São Paulo 14800-060, BrazilDepartment of Engineering, Physics and Mathematics, Chemistry Institute, São Paulo State University (UNESP), Araraquara, São Paulo 14800-060, BrazilHexagonal molybdenum trioxide (h-MoO<sub>3</sub>) was synthesized by microwave-assisted hydrothermal method, allowing an ultrafast growth of unidimensional microrods with well-faceted morphology. The crystalline structure of this metastable phase was confirmed by X-ray diffraction (XRD) and Raman spectroscopy. Scanning electron microscopy (SEM) showed that hexagonal microrods can be obtained in one minute with well-defined exposed facets and the fine control of morphology. Sensing tests of the acetone biomarker revealed that the h-MoO<sub>3</sub> microrods exhibit, at low ppm level, good sensor signal, fast response/recovery times, selectivity to different interferent gases, and a lower detection limit of 400 ppb.https://www.mdpi.com/2571-9637/4/1/2h-MoO<sub>3</sub>hydrothermalmicrowaveacetonegas sensing |
| spellingShingle | Giovana T. Santos Anderson A. Felix Marcelo O. Orlandi Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance Surfaces h-MoO<sub>3</sub> hydrothermal microwave acetone gas sensing |
| title | Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance |
| title_full | Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance |
| title_fullStr | Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance |
| title_full_unstemmed | Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance |
| title_short | Ultrafast Growth of h-MoO<sub>3</sub> Microrods and Its Acetone Sensing Performance |
| title_sort | ultrafast growth of h moo sub 3 sub microrods and its acetone sensing performance |
| topic | h-MoO<sub>3</sub> hydrothermal microwave acetone gas sensing |
| url | https://www.mdpi.com/2571-9637/4/1/2 |
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