Assembly of 2D nanosheets into 3D flower-like NiO: Synthesis and the influence of petal thickness on gas-sensing properties

Jing Wang, Wen Zeng, Zhongchang Wang

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    We report a successful synthesis of three hierarchical NiO nanoflowers via a surfactant-assisted hydrothermal method. We find that the NiO hierarchical architectures are self-assembled by uniform nanosheets with different petal thicknesses. Moreover, we develop gas sensors based upon the nanomaterials and demonstrate that the nanoflower with the thinnest petal exhibits the best gas-sensing functionalities. By conducting a comprehensive characterization of microstructures and morphologies of the nanomaterials, we propose a possible nucleation-growth mechanism and explain how the petal thickness affects the gas-sensing properties of the nanoflowers.

    Original languageEnglish
    Pages (from-to)4567-4573
    Number of pages7
    JournalCeramics International
    Volume42
    Issue number3
    DOIs
    Publication statusPublished - 2016 Feb 15

    Keywords

    • Hierarchical architectures
    • Nanoflower
    • NiO
    • Petal thickness

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Process Chemistry and Technology
    • Surfaces, Coatings and Films
    • Materials Chemistry

    Fingerprint Dive into the research topics of 'Assembly of 2D nanosheets into 3D flower-like NiO: Synthesis and the influence of petal thickness on gas-sensing properties'. Together they form a unique fingerprint.

    Cite this