Surfactant-free synthesis of 3D hierarchical flower-like NiO nanostructures with enhanced ethanol-sensing performance

Different morphologies hierarchical flower-like Nickel oxide nanostructures were fabricated by changing the volume of ammonia (Va = 1, 4, and 8 ml) under a template-free and low-cost hydrothermal method and subsequent calcinations. The nanoflowers were composed of two-dimensional (2D) nanosheets. Th...

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Bibliographic Details
Published inJournal of materials science. Materials in electronics Vol. 31; no. 20; pp. 17291 - 17296
Main Authors Cao, Shixiu, Han, Tao, Peng, Lingling
Format Journal Article
LanguageEnglish
Published New York Springer US 01.10.2020
Springer Nature B.V
Subjects
Ammonia
Characterization and Evaluation of Materials
Chemistry and Materials Science
Ethanol
Functional materials
Materials Science
Morphology
Nanomaterials
Nanostructure
Nickel oxides
Optical and Electronic Materials
Scanning electron microscopy
Sensors
Surfactants
Synthesis
Three dimensional flow
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Summary:Different morphologies hierarchical flower-like Nickel oxide nanostructures were fabricated by changing the volume of ammonia (Va = 1, 4, and 8 ml) under a template-free and low-cost hydrothermal method and subsequent calcinations. The nanoflowers were composed of two-dimensional (2D) nanosheets. The sensor based on the samples of Va = 8 exhibited the most excellent gas-sensing performance to ethanol. Moreover, a possible growth mechanisms were also proposed. The facile preparation method and the improved properties derived from the three-dimensional structures are significant in the synthesis and future applications of functional nanomaterials.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-04283-w