ZnO hierarchical 3D-flower like architectures and their gas sensing properties at room temperature
02 engineering and technology
0210 nano-technology
DOI:
10.1016/j.apsusc.2018.01.199
Publication Date:
2018-02-08T20:30:01Z
AUTHORS (9)
ABSTRACT
Abstract 3D-flower like morphology was successfully synthesized by simple hydrothermal method without using any capping agents and surfactants. FE-SEM and TEM showed flower-like morphology composed of numerous sheets with decorated nanoparticles. Nanosheets assembled petal of the flower with an average thickness of ∼10 nm. Ammonia (NH3) gas sensing analysis revealed that ZnO nanoflower (synthesized with a zinc nitrate and NaOH precursor ratio of 0.1:0.15) showed higher gas response compared with other ZnO nanoflowers synthesized using different precursor ratio. ZnO nanoflower possessed good response (45 s) and recovery time (17 s) at room temperature.
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