期刊
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
卷 45, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colcom.2021.100508
关键词
Electrospinning; In2O (3); Acetone; Response
资金
- Program for Liaoning Innovative Talents in University
In2O3 nanowires were synthesized successfully and characterized with uniform thickness, structural integrity, and high purity. The In2O3 sensor showed improved response to acetone compared to previously published sensors in gas-sensitive tests.
In2O3 nanowires (NWs) were successfully synthesized by electrospinning. The crystalline phase, microstructure, morphology, elemental composition, and BET surface area were analyzed XRD, SEM, TEM, XPS, and nitrogen adsorption. The characterization of the In2O3 NWs showed that In2O3 NWs were uniform thickness, structural integrity, and high purity. In subsequent gas-sensitive tests, the effects of PVP percentage, calcination temperature, calcination ramp-up rate, and calcination time on sensitive properties were analyzed. In particular, the In2O3 sensor showed a response of up to 37.9 (Ra/Rg) to 100 ppm acetone at an operating temperature of 200 degrees C and the response/recovery time is 1 s/7 s. The gas-sensitive mechanism of the In2O3 sensor was also analyzed in conjunction with the characterization results. Our study shows that the response of the In2O3 sensor is improved compared to the previously published sensors.
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