Issue 9, 2011
From the journal:

Journal of Materials Chemistry

Oriented printable layered double hydroxide thin films via facile filtration†

Hong Zhu,a   Shu Huang,a   Zhe Yanga  and  Tianxi Liu*a  

* Corresponding authors

a Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai, P. R. China
E-mail: txliu@fudan.edu.cn
Fax: +86-21-65640293
Tel: +86-21-55664197

Abstract

Highly oriented layered double hydroxide (LDH) thin films are obtained from colloidal dispersion of exfoliated LDH nanosheets in formamide by vacuum filtration. Through filtration, positively charged LDH nanosheets are stacked in interlocking arrangements, which endow LDH thin films with excellent mechanical properties. Consequently, the fresh prepared LDH thin films are printed on different substrates, forming transparent, strong and flexible LDH layers. Utilizing coassembly of positively charged LDH nanosheets with polymeric anions, negatively charged LDH nanohybrids can be obtained. By adding various types of anions into a colloidal dispersion of LDHs and subsequent filtration, LDH thin films with tunable composition and nanostructure can be prepared easily. However, the addition of carbonate or small molecular anionic surfactants leads to aggregation of LDH nanosheets. This facile filtration method will facilitate the fabrication of functional LDH thin films.

Graphical abstract: Oriented printable layered double hydroxide thin films via facile filtration

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Article information

DOI
https://doi.org/10.1039/C0JM03317K
Article type
Paper
Submitted
02 Oct 2010
Accepted
19 Nov 2010
First published
20 Jan 2011

J. Mater. Chem., 2011,21, 2950-2956

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Oriented printable layered double hydroxide thin films via facile filtration

H. Zhu, S. Huang, Z. Yang and T. Liu, J. Mater. Chem., 2011, 21, 2950 DOI: 10.1039/C0JM03317K

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