Issue 8, 2013
From the journal:

RSC Advances

One-step fabrication of 3D hierarchical Ni-incorporated β-Co(OH)2 assembled by 2D center disk and 1D length-tunable brush†

Hongyi Gao,a   Ge Wang,*a   Mu Yang,a   Xiaowei Zhang,a   Zhan Shi,b   Chunguang Li,b   Xinxin Zhangc  and  Xin Cuic  

* Corresponding authors

a School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
E-mail: gewang@mater.ustb.edu.cn

b State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China

c School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China

Abstract

In this work, Ni-incorporated β-Co(OH)2 with a novel well-ordered hierarchical double-faced brush structure assembled by a center round disk and two perpendicular nanorod arrays was successfully fabricated via a facial, template-free hydrothermal process in the presence of EDA. The brush length could be tuned by adjusting the Ni/Co molar ratio R. The as-synthesized products were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TG). The influence of the EDA addition, reacting temperature and reaction time on the formation of the hierarchical Ni-incorporated β-Co(OH)2 was investigated. A formation mechanism was proposed. The hierarchical Ni-incorporated β-Co(OH)2 was converted to Ni-incorporated Co3O4 by calcination successfully preserving the double-faced brush structure.

Graphical abstract: One-step fabrication of 3D hierarchical Ni-incorporated β-Co(OH)2 assembled by 2D center disk and 1D length-tunable brush

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Article information

DOI
https://doi.org/10.1039/C2RA22354F
Article type
Paper
Submitted
01 Oct 2012
Accepted
06 Dec 2012
First published
07 Dec 2012

RSC Adv., 2013,3, 2604-2612

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One-step fabrication of 3D hierarchical Ni-incorporated β-Co(OH)2 assembled by 2D center disk and 1D length-tunable brush

H. Gao, G. Wang, M. Yang, X. Zhang, Z. Shi, C. Li, X. Zhang and X. Cui, RSC Adv., 2013, 3, 2604 DOI: 10.1039/C2RA22354F

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