Synthesis and superparamagnetic property of a Co-Cr Prussian blue analogue nanoparticles inside Nafion membrane

被引:31
作者
Kosaka, Wataru
Tozawa, Masanori
Hashimoto, Kazuhito
Ohkoshi, Shin-ichi
机构
[1] Univ Tokyo, Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan
[2] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
关键词
nanoparticles; Prussian blue analogue; superparamagnetism; blocking temperature; Nafion;
D O I
10.1016/j.inoche.2006.05.032
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A nanoparticle-type of cobalt hexacyanochromate, (K0.19CoII)-Co-I[Cr-III(CN)(6)](0.73) center dot 4.5H(2)O (particle diameter = 8 +/- 2 nm) is prepared in Nafion. The nanoparticles show the superparamagnetism with blocking temperature (T-B) of 8.5 K and an anisotropy energy barrier of 190 K. Magnetic hysteresis loops are observed below T-B, e.g. 1.2 kOe at 2 K. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:920 / 922
页数:3
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