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. 2007 Jan 16;23(2):861-7.
doi: 10.1021/la062345m.

General synthesis and delamination of highly crystalline transition-metal-bearing layered double hydroxides

Zhaoping Liu  1 , Renzhi Ma, Yasuo Ebina, Nobuo Iyi, Kazunori Takada, Takayoshi Sasaki
Affiliations

General synthesis and delamination of highly crystalline transition-metal-bearing layered double hydroxides

Zhaoping Liu et al. Langmuir. .

Abstract

In this paper, we describe a general process for the synthesis and delamination of a family of highly crystalline Al-based and transition-metal-bearing layered double hydroxides (LDHs). Large-sized and monodispersed hexagonal platelike particles of binary-component M(II)-Al-CO3 and ternary-component M(II)-M'(II)-Al-CO3 LDHs (M(II) and M'(II) = Fe, Co, Ni, or Zn) were prepared at first by the urea method under optimized conditions. These CO32--LDHs were converted into other monovalent-anion-containing LDHs by means of a salt-acid treatment and subsequent anion-exchange processes. Finally, well-defined LDH nanosheets were obtained by delamination of NO3--LDHs in formamide.

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