Journal
MATERIALS
Volume 13, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ma13173829
Keywords
bismuth ferrite; gas sensor; nanocrystals; isopropanol
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Funding
- Natural Science Foundation of the Jiangsu Higher Education Institutions [163230102]
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BiFeO(3)nanocrystals were applied as the sensing material to isopropanol. The isopropanol sensor based on BiFeO(3)nanocrystals shows excellent gas-sensing properties at the optimum working temperature of 240 degrees C. The sensitivity of as-prepared sensor to 100 ppm isopropanol is 31 and its response and recovery time is as fast as 6 and 17 s. The logarithmic curves of the sensitivity and concentration of BiFeO(3)sensors are a very good linear in the low detection range of 2-100 ppm. In addition, the gas sensing mechanism is also discussed. The results suggest that the BiFeO(3)nanomaterial can be potentially applied in isopropanol gas detection.
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