Cyano-Bridged Trimetallic Coordination Polymer Nanoparticles and Their Thermal Decomposition into Nanoporous Spinel Ferromagnetic Oxides.
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.
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.|Department of Chemistry, Faculty of Science, Tanta University, Tanta, Gharbeya, 31527, Egypt.
Mohamed B
MB
Zakaria
Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
Md Shahriar A
MS
Hossain
School of Natural Sciences, Griffith University, Nathan, QLD, 4111, Australia.
Muhammad J A
MJ
Shiddiky
Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
Mohammed
M
Shahabuddin
Department of Mechatronics, Faculty of Engineering and Architecture, Gelisim University, Istanbul, 34315, Turkey.
Ekrem
E
Yanmaz
Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
Jung Ho
JH
Kim
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
Alexei A
AA
Belik
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
Yusuke
Y
Ide
School of Physics and Materials Science, East China Normal University, Physical Building, 500 Dongchuan Road, Shanghai, P. R. China.
Ming
M
Hu
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
Satoshi
S
Tominaka
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.|Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia. Yamauchi.Yusuke@nims.go.jp.
Yusuke
Y
Yamauchi
coodination polymers; magnetic properties; metal oxides; nanoporous materials