Abstract
Co3O4 nanobricks were prepared using the method of the hydrothermal corrosion, in which CoSn(OH)6 was the precursor, and it was corroded by NaOH and transformed into Co3O4. The phase composition and morphology of the CoSn(OH)6 and the Co3O4 nanobricks prepared were examined by using XRD, SEM, and TEM. The Co3O4 nanobricks have a face-centered cubic structure with the average nanocrystals size of 10.2 nm. The sensor made by the Co3O4 nanobricks showed an ultra-sensitivity to ozone at low operating temperatures. It exhibited a fast rate of response and recovery, as well as a high stability and repeatability. The Co3O4 nanobricks can be a promising material for sensing ozone.
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This work was financially supported by the National training program of innovation and entrepreneurship for undergraduates (No 1302150810).
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Li, T., Gao, J., Fu, P. et al. The preparation and ozone-sensing performance of Co3O4 nanobricks. J Mater Sci: Mater Electron 30, 9678–9682 (2019). https://doi.org/10.1007/s10854-019-01302-3
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DOI: https://doi.org/10.1007/s10854-019-01302-3