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

被引：235

作者：

Liu, Zhaoping ^{[1
]}

Ma, Renzhi ^{[1
]}

Ebina, Yasuo ^{[1
]}

Iyi, Nobuo ^{[1
]}

Takada, Kazunori ^{[1
]}

Sasaki, Takayoshi ^{[1
]}

机构：

[1] NIMS, Nanoscale Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

来源：

LANGMUIR | 2007年 / 23卷 / 02期

关键词：

D O I：

10.1021/la062345m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：861 / 867

页数：7

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