Abstract
Metal organic frameworks(MOFs), consisting of metal ions or metal ion clusters and organic ligands, has unique structural and functional properties due to its porous structure. Recently, Prussian blue(PB) received attention for their applications in sensor, energy storage, electrochromic, and drug delivery field. In PB, iron, which is a transition metal, exists in two oxidation states, and charge and electron transfer between the two oxidation states is possible and electrochromic property is exhibited. However, in order to apply the selective electrochromic property, it is necessary to make a thin film by modifying the PB surface. In this paper, Fe<sub>4</sub>[Fe(CN<sub>6</sub>)]<sub>3</sub> porous samples synthesize with citrate and citric acid as dispersant in a water and ethanol solvent at room temperature. The structure and morphology of Fe<sub>4</sub>[Fe(CN<sub>6</sub>)]<sub>3</sub> can be controlled by adjusting number of precursor, precursor solution, amount of additives, ratio of additives. Synthesized materials were analyzed by XRD, FT-IR, FE-SEM, UV-Vis spectroscopy, and EIS.
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