Add time:08/10/2019         Source:sciencedirect.com

In this paper, we presented a carbon tetrachloride gas sensor with strong cataluminescence response based on Ag2Se nanomaterial, which was synthesized via the electrodeposition on the surface of Al foil by directly using a non-aqueous dimethyl sulfoxide (DMSO) solution with CH3COOAg and SeCl4. The deposited Ag2Se material was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Then, the prepared Ag2Se material along with the Al foil substrate was employed to design the carbon tetrachloride gas sensor. Under the optimized conditions, the present gas sensor exhibited a broad linear range of 0.9–228 μg mL−1, with a limit of detection of 0.3 μg mL−1 (S/N = 3). The proposed gas sensor showed good characteristics with high selectivity, fast response and long lifetime.

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