Three-dimensional hierarchical nickel-based hydroxides and oxides microspheres and their electrochemical properties

Author

Hui Liu ; Xiaonan Dong ; Congyue Duan ; Xing Su ; Zhenfeng Zhu

Author_Institution

Sch. of Mater. Sci. & Eng., Shaanxi Univ. of Sci. & Technol., Xi´an, China

Volume

8

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

745

Lastpage

748

Abstract

Nickel hydroxides (Ni(OH)₂) with various morphologies, including flower-like, walnut-like and particle-aggregated microspheres, have been successfully synthesised by a surfactant-assisted microwave hydrothermal method. NiO microspheres have been obtained by calcining corresponding Ni(OH)₂ precursors at 400°C for 2 h. The products were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and transform electron microscopy. The electrochemical properties of the NiO microspheres with different morphologies were also investigated.

Keywords

Fourier transform spectra; X-ray diffraction; calcination; crystal morphology; electrochemistry; infrared spectra; nickel compounds; scanning electron microscopy; surfactants; thermal analysis; Fourier transform infrared spectroscopy; Ni(OH)₂; NiO; NiO microspheres; X-ray diffraction; calcination; electrochemical properties; flower-like microspheres; morphology; nickel hydroxides; oxides microspheres; particle-aggregated microspheres; scanning electron microscopy; surfactant-assisted microwave hydrothermal method; temperature 400 degC; thermogravimetric analysis; three-dimensional hierarchical nickel-based hydroxides; time 2 h; transform electron microscopy; walnut-like microspheres;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2013.0335

Filename

6651487