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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ultrafast Growth of h-MoO3 Microrods and Its Acetone Sensing Performance

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Author(s):
Santos, Giovana T. [1] ; Felix, Anderson A. [1] ; Orlandi, Marcelo O. [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ UNESP, Chem Inst, Dept Engn Phys & Math, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: SURFACES; v. 4, n. 1, p. 9-16, MAR 2021.
Web of Science Citations: 0
Abstract

Hexagonal molybdenum trioxide (h-MoO3) 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-MoO3 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. (AU)

FAPESP's process: 17/26219-0 - Study of Single Element Chemical Sensor Devices based on Semiconducting Metal Oxide Materials
Grantee:Marcelo Ornaghi Orlandi
Support Opportunities: Regular Research Grants