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MOF-derived Co3O4/NiCo2O4 double-shelled nanocages with excellent gas sensing properties.
- Source :
-
Materials Letters . Mar2017, Vol. 190, p75-78. 4p. - Publication Year :
- 2017
-
Abstract
- Co 3 O 4 /NiCo 2 O 4 double-shelled nanocages (DSNCs) were successfully prepared through a metal-organic frameworks (MOFs) route. The strategy includes the synthesis of zeolite imidazolate framework-67 (ZIF-67)/Ni-Co layer doubled hydroxides precursor and subsequent transformation to Co 3 O 4 /NiCo 2 O 4 DSNCs by thermal annealing of the as-prepared precursor in air. Various techniques such as XRD, SEM/EDS, BET and TEM were employed for the characterization of microstructure and morphology of the as-prepared Co 3 O 4 /NiCo 2 O 4 DSNCs. The use of as-prepared Co 3 O 4 /NiCo 2 O 4 DSNCs as a gas sensing material in a gas sensor gave an enhanced sensitivity to acetone compared with result obtained in Co 3 O 4 nanocages (NCs). In addition, excellent reversibility and selectivity of the sensor were observed. These properties make the Co 3 O 4 /NiCo 2 O 4 DSNCs a good candidate for acetone detection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 190
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 121025733
- Full Text :
- https://doi.org/10.1016/j.matlet.2016.12.139