Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 255, Issue -, Pages 1211-1219Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.07.162
Keywords
Ce-doped In2O3; Hydrothermal; Hierarchical structures; Acetone sensor
Funding
- National Nature Science Foundation of China [61573164, 61520106003, 61327804]
- National High-Tech Research and Development Program of China (863 Program) [2014AA06A505]
Ask authors/readers for more resources
Pure and 1-5 mol% Ce-doped hierarchical flower-like In2O3 microspheres with uniform sizes were synthesized via environment friendly one-step hydrothermal method. Their phase structures, morphologies properties and element composition were investigated by different kinds of techniques, including X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and X-ray photoelectric spectroscopy (XPS). Their gas-sensing properties were tests for several kinds of Volatile Organic Compounds (VOCs). The results indicated that Ce doping could greatly improve sensing performances of In2O3 gas sensors. Among all the samples (0, 1, 3 and 5 mol% Ce-doped In2O3), 3 mol% Ce-doped In2O3 exhibited the highest response toward 200 ppm acetone at 250 degrees C, having a response of 41.8, which was about 4 times higher than pure In2O3. Furthermore, good repeatability and long term stability were achieved, showing its prospect for excellent acetone gas sensor with high performance. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available