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http://dx.doi.org/10.6111/JKCGCT.2017.27.3.110

Synthesis and characterization of three-dimensional monodispersed NiO/NiCo2O4 via Ni3[Co(CN)6]2 PBA nanocubes  

Kwag, Sung Hoon (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Lee, Young Hun (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Kim, Min Seob (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Lee, Chul Woo (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Kang, Bong Kyun (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Yoon, Dae Ho (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Abstract
$NiO/NiCo_2O_4$ nanocubes were successfully synthesized via the calcination process of $Ni_3[Co(CN)_6]_2$ PBAs. The prepared monodispersed $Ni_3[Co(CN)_6]_2$ PBAs were aggregated by 'self-assembly' of the nuclei generated during the synthesis reaction. The self-assembly rate of the particles is affected by the temperature and the amount of surfactant SDBS (sodium dodecylbenzenesulfonate). FESEM analysis shows that monodispersed 200 nm PBA nanocubes are obtained at 0.25 g SDBS and $60^{\circ}C$ temperature. Thermal behavior was confirmed by thermogravimetric-differential thermal analysis (TG-DTA) to determine optimal calcination conditions. Then, field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analyzes were performed to investigate the morphology and crystallinity of the particles precursors and $NiO/NiCo_2O_4$ nanocubes.
Keywords
Metal-organic frameworks; Prussian blue analogues; Nanocube; $NiCo_2O_4$;
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