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- W3094496724 endingPage "157562" @default.
- W3094496724 startingPage "157562" @default.
- W3094496724 abstract "Metal molybdate compounds have attracted considerable attention due to their technological applications. Herein, we demonstrate the controllable synthesis of cerium molybdate (Ce2(MoO4)3) nanocrystals via the co-precipitation method followed by microwave-assisted hydrothermal (MAH) treatment at 150 °C during different times (15, 30 and 60 min). The effect of MAH treatment time on the microstructural, optical, and ozone gas-sensing properties of these nanocrystals was investigated. X-ray diffraction (XRD) and Raman spectroscopy measurements revealed that the samples presented a single-crystalline phase with scheelite-type tetragonal structure. Field emission gun scanning electron microscopy (FEG-SEM) images showed that the MAH conditions favored changes in the Ce2(MoO4)3 nanocrystal morphology. Photoluminescence (PL) measurements indicated a significant enhancement of PL emission with MAH time, suggesting an increase in the intrinsic defects formed during the MAH treatment. The gas-sensing performance of cerium molybdate nanocrystals towards sub-ppm ozone levels was also investigated. The experiments revealed complete recovery and good repeatability as well as good sensor response, which was improved in the sample synthesized at longer MAH time." @default.
- W3094496724 created "2020-10-29" @default.
- W3094496724 creator A5001080640 @default.
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- W3094496724 date "2021-03-01" @default.
- W3094496724 modified "2023-10-16" @default.
- W3094496724 title "Cerium molybdate nanocrystals: Microstructural, optical and gas-sensing properties" @default.
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- W3094496724 doi "https://doi.org/10.1016/j.jallcom.2020.157562" @default.
- W3094496724 hasPublicationYear "2021" @default.
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