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Fe-doped α-MoO3 nanoarrays: Facile solid-state synthesis and excellent xylene-sensing performance.
- Source :
-
Applied Surface Science . May2020, Vol. 512, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- • Fe-doped α-MoO 3 nanoarrays was first synthesized by a simplistic solid-state chemical reaction strategy. • Fe-doped MoO 3 nanoarrays exhibited a high response. • The high response originated from more internal oxygen vacancies and surface ionized oxygen species. • The nanoarrays have also excellent selectivity, rapid response-recovery and good long-term stability. Fe-doped α-MoO 3 nanoarrays have been synthesized via a facile two-step solid-state chemical reaction process. The Fe element was effectively doped into the α-MoO 3 nanoarrays self-assembled by nanoplates via an initial room-temperature solid-state reaction and a subsequent mesothermal calcination. The gas-sensing properties of Fe-doped α-MoO 3 nanoarrays were investigated and the possibility of its application to gas sensors was explored. The result indicated that 0.3 mol% Fe-doped α-MoO 3 nanoarrays exhibited a high response value (28.5) towards 100 ppm xylene within 2 s, which is attributed to its more oxygen vacancies and surface ionized oxygen species. Furthermore, the 0.3 mol% Fe-doped α-MoO 3 nanoarrays also manifested a good selectivity and long-term stability. Therefore, the Fe-doped MoO 3 nanoarrays are a potential candidate for xylene sensor in future sensing applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CHEMICAL processes
*CHEMICAL reactions
*XYLENE
Subjects
Details
- Language :
- English
- ISSN :
- 01694332
- Volume :
- 512
- Database :
- Academic Search Index
- Journal :
- Applied Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 142498240
- Full Text :
- https://doi.org/10.1016/j.apsusc.2020.145722