Assembly of 2D nanosheets into 3D flower-like NiO: Synthesis and the influence of petal thickness on gas-sensing properties. Issue 3 (15th February 2016)

• Record Type: Journal Article
• Authors: Wang, Jing; Zeng, Wen; Wang, Zhongchang
• Is Part Of: Ceramics international. Volume 42:Issue 3(2016)
• Page Start: 4567
• Page End: 4573
• Publication Date: 2016-02-15
• Subjects: Nanoflower -- NiO -- Hierarchical architectures -- Petal thickness; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.11.150
• Languages: English
• ISSNs: 0272-8842

Abstract

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.