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Chemistry. 2016 Oct 10;22(42):15042-15048. doi: 10.1002/chem.201603220. Epub 2016 Sep 4.

Cyano-Bridged Trimetallic Coordination Polymer Nanoparticles and Their Thermal Decomposition into Nanoporous Spinel Ferromagnetic Oxides.

Author information

1
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
2
Department of Chemistry, Faculty of Science, Tanta University, Tanta, Gharbeya, 31527, Egypt.
3
Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
4
School of Natural Sciences, Griffith University, Nathan, QLD, 4111, Australia.
5
Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
6
Department of Mechatronics, Faculty of Engineering and Architecture, Gelisim University, Istanbul, 34315, Turkey.
7
School of Physics and Materials Science, East China Normal University, Physical Building, 500 Dongchuan Road, Shanghai, P. R. China.
8
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan. Yamauchi.Yusuke@nims.go.jp.
9
Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia. Yamauchi.Yusuke@nims.go.jp.

Abstract

The synthesis of a novel family of cyano-bridged trimetallic coordination polymers (CPs) with various compositions and shapes has been reported by changing the compositional ratios of Fe, Co, and Ni species in the reaction system. In order to efficiently control the nucleation rate and the crystal growth, trisodium citrate dihydrate plays an important role as a chelating agent. After the obtained cyano-bridged trimetallic CPs undergo thermal treatment in air at three different temperatures (250, 350, and 450 °C), nanoporous spinel metal oxides are successfully obtained. Interestingly, the obtained nanoporous metal oxides are composed of small crstalline grains, and the grains are oriented in the same direction, realizing pseudo-single crystals with nanopores. The resultant nanoporous spinel oxides feature interesting magnetic properties. Cyano-bridged multimetallic CPs with various sizes and shapes can provide a pathway toward functional nanoporous metal oxides that are not attainable from simple cyano-bridged CPs containing single metal ions.

KEYWORDS:

coodination polymers; magnetic properties; metal oxides; nanoporous materials

PMID:
27594526
DOI:
10.1002/chem.201603220

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