Hydrothermal Synthesis and Primary Gas Sensing Properties of CuO Nanosheets

Abstract

Uniformity nanosheets of CuO were prepared by a mild hydrothermal synthesis method. Phase analysis was carried out using x-ray diffraction (XRD) and the result confirmed the CuO nanosheets as a single phase. The field-emission scanning electron microscopy (FE-SEM) was used to observe the morphology of CuO nanosheets while the gas sensing properties of these unique CuO nanosheets were tested at a static state system. The results show that the CuO has uniformity nanosheets, and the gas sensing property show that the CuO nanosheets gas sensor has a stable gas response and the same gas sensitivity trend to tested gases. This method may be suitable for larger-scale production of these CuO nanosheets for practical applications.

Keywords:

• Chemical synthesis
• gas sensor
• inorganic compounds
• nanostructures
• oxides

This work has been supported by the National Nature Science Foundation (50672075), the NCET and RFDP (20050699011) Program of MOE, the Fundamental Research Foundation (NPU-FFR-200703) and Doctorate Foundation of NPU (CX200804), the Aeronautic Science Foundation (2006ZF53068) of China.