期刊
IEEE TRANSACTIONS ON NANOTECHNOLOGY
卷 17, 期 2, 页码 212-219出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNANO.2017.2789225
关键词
One-step synthesis; nanocomposites; sensing; Au/SnO2/RGO; VOCs
类别
资金
- National Natural Science Foundation of China [61673367, 61374017, 61573334, 31571567]
- Anhui Provincial Natural Science Foundation [1708085MB36]
Au/SnO2/reduced graphene oxide (RGO) nanocomposites have been successfully synthesized by a one-step method. The sample was characterized by X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive spectroscopy, and X-ray photoelectron spectrometry to explore the formation mechanism. The gas sensing properties of the synthesized Au/SnO2/RGO nanocomposites have been investigated, which revealed that Au nanoparticles obviously enhanced the sensitivity by comparing with the SnO2/RGO nanocomposites and pure SnO2. The Au/SnO2/RGO nanocomposites showed higher response to ethanol than other VOCs. They also exhibited a wide linear detection range from 1 to 1000 ppm and high reproducibility to ethanol. Here, the sensing mechanism of the Au/SnO2/RGO nanocomposites has also been discussed in detail.
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