Jump to main content
Jump to site search


Synthesis of CuO–CdS composite nanowires and their ultrasensitive ethanol sensing properties

Author affiliations

Abstract

In this paper, CuO–CdS composites were synthesized by a facile two-step solvothermal method. The composite materials were characterized by a series of systematical measures, such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. Through detailed experiments, it was observed that the shape of the as-prepared materials could be tailored by varying the CuO content in composites. The experimental results manifested that CdS decorated with 0.05 at% CuO presents superior performance including response/recovery speed, detection limit, optimum operating temperature, and sensitivity in comparison with pure CdS. The possible mechanisms of enhanced sensing properties were discussed in detail. At the interface of the two different material surfaces, the capacity of surface-adsorbed oxygen was elevated, which can be attributed to the formation of the p–n heterojunction between CdS and CuO. In conclusion, the functionalization of CuO with CdS may be a promising method to enhance gas-sensing properties.

Graphical abstract: Synthesis of CuO–CdS composite nanowires and their ultrasensitive ethanol sensing properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Sep 2018, accepted on 19 Nov 2018 and first published on 03 Dec 2018


Article type: Research Article
DOI: 10.1039/C8QI00951A
Citation: Inorg. Chem. Front., 2019, Advance Article
  •   Request permissions

    Synthesis of CuO–CdS composite nanowires and their ultrasensitive ethanol sensing properties

    N. Zhang, X. Ma, Y. Yin, Y. Chen, C. Li, J. Yin and S. Ruan, Inorg. Chem. Front., 2019, Advance Article , DOI: 10.1039/C8QI00951A

Search articles by author

Spotlight

Advertisements