MOF-derived porous ZnO/Co3O4 nanocomposites for high performance acetone gas sensing
We report a facile strategy to synthesize porous ZnO/Co 3 O 4 composites by direct pyrolysis of the metal–organic frameworks (MOFs) precursor and their applications to the sensing of acetone at ppb–ppm level. The as-prepared ZnO/Co 3 O 4 sample exhibits enhanced sensitivity (15.17 ppm −1 ), high sel...
Gespeichert in:
Veröffentlicht in: | Journal of materials science. Materials in electronics 2018-05, Vol.29 (10), p.8535-8546 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | We report a facile strategy to synthesize porous ZnO/Co
3
O
4
composites by direct pyrolysis of the metal–organic frameworks (MOFs) precursor and their applications to the sensing of acetone at ppb–ppm level. The as-prepared ZnO/Co
3
O
4
sample exhibits enhanced sensitivity (15.17 ppm
−1
), high selectivity towards low-concentration acetone when compared with pure ZnO. The enhancement in gas sensing performance of ZnO/Co
3
O
4
sample could be attributed to the unique porous structure, the
p
-Co
3
O
4
/
n
-ZnO junctions effect and the catalytic activity of Co
3
O
4
. The studies might open intriguing perspectives for the design of porous p/n composites for high performance gas sensing applications. |
---|---|
ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-018-8867-9 |