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Issue 46, 2013
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Structural insights into ion conduction of layered double hydroxides with various proportions of trivalent cations

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Abstract

We report herein the structural influence of in-plane cation arrangements on ion conductivities of layered double hydroxides (LDHs). Mg–Al–CO3 and Mg–Ga–CO3 LDHs with different proportions of trivalent cations were synthesized by the co-precipitation method, and we found that their ion conductivities presented a steep increase only at peculiar proportions of trivalent cations. Electron-beam diffraction patterns revealed that LDHs with such proportions had an ordered honeycomb arrangement of di- and trivalent cations in (0001) hydroxide layers. We propose a crucial insight that relates the order/disorder arrangement and ion conductivities for better understanding the nature of LDHs.

Graphical abstract: Structural insights into ion conduction of layered double hydroxides with various proportions of trivalent cations

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Publication details

The article was received on 11 Sep 2013, accepted on 25 Sep 2013 and first published on 22 Oct 2013


Article type: Paper
DOI: 10.1039/C3TA13632A
Citation: J. Mater. Chem. A, 2013,1, 14569-14576
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    Structural insights into ion conduction of layered double hydroxides with various proportions of trivalent cations

    K. Miyazaki, Y. Asada, T. Fukutsuka, T. Abe and L. A. Bendersky, J. Mater. Chem. A, 2013, 1, 14569
    DOI: 10.1039/C3TA13632A

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