期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 329, 期 1, 页码 188-195出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2008.09.067
关键词
Prussian Blue; Nanocrystals; Morphology synthesis; Magnetic property; Electrocatalytic property
资金
- National Natural Science Foundation of China [20875039]
- Foundation of State Key Laboratory of Coordination Chemistry
Large-scale syntheses of Prussian Blue (PB) uniform nanocubes and nanospheres, together with all interesting PB micro-frame structure, have been achieved by direct dissociation of a single-source precursor K-3[Fe(CN)(6)] with polyvinylprrolidone (PVP) as a capping and reducing agent. The reaction temperature has been proved to be a key factor for morphology development of PB nanocrystals, and the size of PB nanocrystals can be tuned by adjusting the feed ratio of K3[Fe(CN)(6)] to PVP and the concentration of K-3[Fe(CN)(6)]. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), and high resolution transmission electron microscopy (HRTEM) were used to characterize the resulting nanocrystals and investigate their growth mechanisms. Optical and magnetic studies showed size- and shape-dependent optical and magnetic properties in the PB nanocrystals. An excellent electro-catalytic Property to hydrogen peroxide reduction was observed at the PB nanocube-modified electrode. (c) 2008 Elsevier Inc. All rights reserved.
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