Citation: GAO Cui-Ping, WANG Yan, CHU Xiang-Feng, LIANG Shi-Ming, GAO Qi, LI Xue. Preparation and Gas-Sensing Properties of CuGa₂O₄ by Co-precipitation Method[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(1): 59-64. doi: 10.11862/CJIC.2019.005 shu

Preparation and Gas-Sensing Properties of CuGa₂O₄ by Co-precipitation Method

GAO Cui-Ping ¹ ,
WANG Yan ¹ ,
CHU Xiang-Feng ^1,, ,
LIANG Shi-Ming ^2,, ,
GAO Qi ¹ ,
LI Xue ¹

1.
School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China
2.
School of Materials Science and Engineering, Linyi University, Linyi, Shandong 276005, China

Corresponding author: CHU Xiang-Feng, maschem@sohu.com LIANG Shi-Ming, lsmwind@163.com
Received Date: 4 July 2018
Revised Date: 19 October 2018

Figures(7)

CuGa₂O₄ powders were prepared by co-precipitation method and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), etc. The effect of heat treatment temperature and pH on the gas sensing properties of CuGa₂O₄ powders was investigated. The results indicated that CuGa₂O₄ powders prepared by calcining at 800℃ for 4 h and pH=6.00 exhibited good gas sensing selectivity and high sensitivity to trimethylamine (TMA) at room temperature (18±2)℃. The responses to 1 000 and 1 μL·L^-1 TMA reached 310.1 and 1.3, respectively, and the response and recovery times for 1 000 μL·L^-1 TMA were 590 and 80 s.
- CuGa₂O₄,
- gas sensing properties,
- co-precipitation method,
- trimethylamine
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Preparation and Gas-Sensing Properties of CuGa₂O₄ by Co-precipitation Method