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- W2985529225 abstract "Abstract In this paper, flake-like Fe3O4/carbon (Fe3O4/C) nanocomposites were synthesized via a facile molten-salt method using ferric-oleate as precursor and sodium sulfate as template. Transmission electron microscopy (TEM) and field-emission scanning electron microscopy (FESEM) results showed that highly stable and monodisperse Fe3O4 nanocrystals were firmly embedded in flake-like carbon carriers. As a active layer in solid-state resistive chemical sensor, the gas sensing properties of the sensing layer in controlled atmospheres such as ethyl acetate, acetic acid, ethanol and acetone, at different concentrations and working temperatures were systematically tested. The gas sensing results revealed that the Fe3O4/C nanocomposites sensors exhibited high sensitivity, short recovery time to the above vapors. The excellent gas-sensing properties of the prepared nanostructures are attributed to the surface structure of Fe3O4/C nanocomposites. The reason is that the carbon film can inhibit the agglomeration of Fe3O4 nanoparticles, and maintain the shape and size of Fe3O4 nanoparticles when working, thus maintaining the good gas sensing properties. This study provides a new idea for the design of carbon film supported nanoparticle materials, and is expected to be widely used in other applications in the future." @default.
- W2985529225 created "2019-11-22" @default.
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- W2985529225 date "2020-03-01" @default.
- W2985529225 modified "2023-10-16" @default.
- W2985529225 title "Facile synthesis of high-stable and monodisperse Fe3O4/carbon flake-like nanocomposites and their excellent gas sensing properties" @default.
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- W2985529225 doi "https://doi.org/10.1016/j.jallcom.2019.152898" @default.
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