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A MOF-derived porous In2O3 flower-like hierarchical architecture sensor: near room-temperature preparation and fast trimethylamine sensing performance.
- Source :
-
New Journal of Chemistry . 6/7/2023, Vol. 47 Issue 21, p10265-10272. 8p. - Publication Year :
- 2023
-
Abstract
- We have successfully prepared a metal–organic-framework (MOF) derived In2O3 flower-like hierarchical architecture sensor using a near room-temperature template-free strategy and a subsequent accurate annealing process. The In2O3 flower-like hierarchical architecture sensor exhibits good sensitivity to trimethylamine. The fabricated sensor has a relatively low working temperature of 140 °C, a response of 35.2 for 20 ppm trimethylamine, a response time as fast as 2 s, and good selectivity and stability. In addition, the sensor exhibits good conductivity. The sensor's enhanced gas sensing performance can be attributed to the synergistic effect of its unique flower-like hierarchical architecture, porous hierarchical morphology and abundant oxygen vacancies. Furthermore, the possible growth mechanism and the gas sensing mechanism are also discussed in detail. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TRIMETHYLAMINE
*DETECTORS
*LOW temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 47
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 163983769
- Full Text :
- https://doi.org/10.1039/d3nj01350b