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dc.contributor.authorYang, Chao
dc.contributor.authorXiao, Feng
dc.contributor.authorWang, Jide
dc.contributor.authorSu, Xintai
dc.date.accessioned2018-01-03T01:40:34Z
dc.date.available2018-01-03T01:40:34Z
dc.date.issued2015
dc.identifier.issn0925-4005
dc.identifier.doi10.1016/j.snb.2014.10.063
dc.identifier.urihttp://hdl.handle.net/10072/172085
dc.description.abstract3D flower- and 2D branching sheet-like CuO nanostructures have been synthesized by a microwave-assisted hydrothermal method. The samples were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), infrared spectroscopy (IR), UV–vis diffuse reflectance spectroscopy (UV-DRS), and Brunauer–Emmett–Teller (BET) specific surface area analysis. The phase and morphology observations showed the formation of monoclinic CuO nanostructures with well-defined morphology. BET analysis displayed that the measured surface area was 15.0 m2 g−1 for CuO flowers, and 20.8 m2 g−1 for CuO nanosheets. Gas sensing properties of the as-synthesized CuO nanostructures were evaluated by the detection of volatile and toxic gases including ethanol, ethyl-acetate, acetone, xylene, and toluene. It was found that CuO flowers exhibited an enhanced gas response to the five gases at 260 °C, compared to CuO nanosheets. Furthermore, at 1000 ppm, the CuO flower sensor gave a higher response to ethyl-acetate (Rg/Ra = 4.6) and ethanol (Rg/Ra = 4.0), in comparison with toluene (Rg/Ra = 2.8). In addition, the CuO flowers displayed a rapid response and recovery as well as good reproducibility.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom177
dc.relation.ispartofpageto185
dc.relation.ispartofissuePart A
dc.relation.ispartofjournalSensors and Actuators, B: Chemical
dc.relation.ispartofvolume207
dc.subject.fieldofresearchPhysical Chemistry not elsewhere classified
dc.subject.fieldofresearchOptical Physics
dc.subject.fieldofresearchAnalytical Chemistry
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchcode030699
dc.subject.fieldofresearchcode0205
dc.subject.fieldofresearchcode0301
dc.subject.fieldofresearchcode0912
dc.title3D flower- and 2D sheet-like CuO nanostructures: Microwave-assisted synthesis and application in gas sensors
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorSu, Xintai


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