Exfoliating layered double hydroxides in formamide: a method to obtain positively charged nanosheets

被引：475

作者：

Ma, Renzhi ^{[1
]}

Liu, Zhaoping ^{[1
]}

Li, Liang ^{[1
]}

Iyi, Nobuo ^{[1
]}

Sasaki, Takayoshi ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Nanoscale Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2006年 / 16卷 / 39期

关键词：

D O I：

10.1039/b605422f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Exfoliation of layered double hydroxides (LDHs) into single layers provides a new type of nanosheet with ultimate two-dimensional anisotropy and positive charge. In this Highlight article, we briefly review the latest advances in this emerging field. In comparison with the previous studies, we show that micrometer-sized and well-defined LDH nanosheets can be readily attained by synthesizing large crystals of LDH-carbonate via so-called homogeneous precipitation and subsequent exfoliation of the nitrate form in formamide. Some general aspects including the exfoliating process and characterization, a plausible delaminating mechanism, and future challenges, are presented and discussed.

引用

页码：3809 / 3813

页数：5

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