Abstract
AbstractThe reactivity of potassium or sodium hexacyanoferrate(II) with transition‐metal layered simple hydroxides (LSHs) has been investigated to evaluate the possibility of inserting Prussian Blue analogues (PBAs) into magnetic copper(II) LSHs. This report shows how such a reaction led, unexpectedly, to the direct formation of PBA nanoparticles, the layered hydroxide serving as a metal‐ion reservoir. The lamellar structure of the starting LSH collapses and copper–iron PBA nanoparticles were obtained as well‐defined cubic structures stacked in layers. In addition to structural and magnetic characterization, the reaction mechanism was investigated by 57Fe Mössbauer spectrometry and X‐ray photoemission spectroscopy. The layered copper hydroxide acetate turns out to be a smart precursor of well‐shaped PBA nanoparticle layers through pseudomorphic replication.
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