Switchable self-assembly of Prussian blue analogs nano-tiles triggered by salt stimulus

被引：12

作者：

Dedovets, D. ^{[1
]}

Bauduin, P. ^{[1
]}

Causse, J. ^{[1
]}

Girard, L. ^{[1
]}

Diat, O. ^{[1
]}

机构：

[1] UM, CNRS, UMR 5257, ICSM,CEA,ENSCM, BP 17171, F-30207 Bagnols Sur Ceze, France

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2016年 / 18卷 / 04期

关键词：

ALLOY NANOPARTICLES; SHELL NANOPARTICLES; ION INSERTION; HEXACYANOFERRATE; NANOCUBES; CESIUM; ALKALI; SHAPE;

D O I：

10.1039/c5cp06574g

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：

Prussian blue analogs (PBAs) are materials well known for their bulk physical and (electro)-chemical properties, with an outstanding selectivity for caesium in ion exchange processes. Crystalline nano-tiles, made of copper based PBA, are produced and dispersed in water by tuning their electrostatic interactions. The shape and size of the nano-crystals are determined by combining scattering, microscopic and spectral techniques. We show here that Cu-PBA nano-tiles form planar superstructures by an edge to edge self-assembly process controlled by specific cation effect and ionic strength. Sedimentation and (re-)dispersion of the nano-tiles are found to be fully reversible. This switchable anisotropic self-assembly triggered by salt stimulus makes PBA nanocrystals potentially interesting for applications.

引用

页码：3188 / 3196

页数：9

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