Controlled Growth of Cyano-Bridged Coordination Polymers into Layered Double Hydroxides

Abstract

The controlled growth of cyano-bridged coordination polymers was developed by using layered double hydroxides (LDH) as bidimensional host structures. A series of nanocomposites [B0.66Al0.33(OH)2]0.33+/[MFe(CN)6]− (B = Mg, Ni; M = Ni, Co) were obtained by step-by-step coordination of hexacyanoferrate building blocks and bivalent metal ions into the interlayer domain of the matrix. The obtained nanocomposites were studied by infrared (IR), UV−vis spectroscopy, X-ray diffraction, and magnetic measurements, which reveal the presence of cyano-bridged coordination polymers [MFe(CN)6]− intercalated into the LDH. [MFe(CN)6]− confined into diamagnetic [Mg0.66Al0.33(OH)2]0.33+ and magnetic [Ni0.66Al0.33(OH)2]0.33+ LDH layers show the presence of a spin-glass behavior in which the magnetic parameters depend on the nature of both the confined coordination polymer and the LDH host.

Unique NiFe NiCoO2 hollow polyhedron as bifunctional electrocatalysts for water splitting

“…As shown in Fig. 1 (a 6 ] − has been inserted into the hydrotalcite layer successfully, which is in good consistent with that reported in the literature [35] . FT-IR spectra of the NiCo -LDH and NiCo -NiFe(CN) 6 are presented in Fig.…”

Bio-inorganic hybrid photoanodes of photosystem II and ferricyanide-intercalated layered double hydroxide for visible-light-driven water oxidation

“…(Fig. S1), corresponding to the stretching vibration of [Fe II (CN) 6 ] 4species [45]. Peak shifts for the (003) diffraction to lower 2θ angles were observed in XRD patterns after the anion exchange (Fig.…”

“…Peak shifts for the (003) diffraction to lower 2θ angles were observed in XRD patterns after the anion exchange (Fig. S2), indicating that the increase in basal distance involved the intercalation of ferricyanide, which is larger than carbonate [45]. with PSII did (Fig.…”

Co—Fe Prussian Blue Analogue Intercalated into Diamagnetic Mg—Al Layered Double Hydroxides

“…[21] In addition, the controlled growth of M-Fe PBA (M = Ni, Co) into diamagnetic Mg-Al LDH and magnetic Ni-Al LDH has exhibited spin-glass behavior. [22] Therefore, in order to understand the photomagnetic properties of low-dimensional Co-Fe PBA, it was twodimensionally intercalated into the MgAl LDH template by using the stepwise anion exchange method. The obtained compounds were characterized by X-ray diffraction (XRD), infrared (IR) spectroscopy, 57 Fe Mössbauer spectroscopy, scanning electron microscopy (SEM) and magnetic measurement.…”

“…[21] In addition, the controlled growth of M–Fe PBA (M = Ni, Co) into diamagnetic Mg–Al LDH and magnetic Ni–Al LDH has exhibited spin-glass behavior. [22]…”