Exchange of iron ions into layers of α-zirconium phosphate

Costantino, U.; Szirtes, L.; Кузманн, Э.; Megyeri, J.; Lázár, K.

doi:10.1016/s0167-2738(01)00807-4

Cited by 18 publications

(9 citation statements)

References 6 publications

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“…This cavity is closed with two zirconium atoms located on the C 3 axis, respectively below and above the basal faces of the triangular antiprism. One such cavity is present per unit formula of α-ZrP and is occupied by the water molecule, linked by hydrogen bonds to POH groups 3,15,30 .…”

Section: Resultsmentioning

confidence: 99%

On the Nature of Sandwiched Chromium Complexes in Exchanged alpha-Zirconium Phosphate

Rapôso

Eon

2002

Mat. Res.

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Section: Resultsmentioning

confidence: 99%

On the Nature of Sandwiched Chromium Complexes in Exchanged alpha-Zirconium Phosphate

Rapôso

Eon

2002

Mat. Res.

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“…During intercalation, higher valence species induce a strong electrostatic interaction with the anionic interlayers, which mitigates interlayer expansion [46]. Figure 4B also shows that, for the case of the metal-adsorbed ZrP systems, their respective interlayer spacing were unchanged and remained equal to that of α-ZrP (7.6 Å) at 1:1-1:10 molar ratios, conclusively showing that, for these particular materials, the metal is adsorbed on the surface and not intercalated.…”

Section: Xrpd Interlayer Expansion Analysis Of Metal-modified Zrpmentioning

confidence: 99%

Transition Metal-Modified Zirconium Phosphate Electrocatalysts for the Oxygen Evolution Reaction

et al. 2017

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Zirconium phosphate (ZrP), an inorganic layered nanomaterial, is currently being investigated as a catalyst support for transition metal-based electrocatalysts for the oxygen evolution reaction (OER). Two metal-modified ZrP catalyst systems were synthesized: metal-intercalated ZrP and metal-adsorbed ZrP, each involving Fe(II), Fe(III), Co(II), and Ni(II) cations. Fourier transform infrared spectroscopy, X-ray powder diffraction, thermogravimetric analysis, and X-ray photoelectron spectroscopy were used to characterize the composite materials and confirm the incorporation of the metal cations either between the layers or on the surface of ZrP. Both types of metal-modified systems were examined for their catalytic activity for the OER in 0.1 M KOH solution. All metal-modified ZrP systems were active for the OER. Trends in activity are discussed as a function of the molar ratio in relation to the two types of catalyst systems, resulting in overpotentials for metal-adsorbed ZrP catalysts that were less than, or equal to, their metal-intercalated counterparts.

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“…[9][10][11][12][13][14] It has also been reported that ZP possesses excellent selectivity towards Pb 2+ , Zn 2+ , and Fe 3+ as an ion exchanger. [15][16][17] Furthermore, ZP has been reported to exhibit antibacterial activity when it was loaded with Cu 2+ , Zn 2+ , or Ce 3+ . 5,[12][13][14] Several reports have also appeared in the literature concerning the catalytic activities of ion exchanged materials of this type, including the use of copper zirconium phosphate (ZPCu) as catalyst in the acetylation of alcohols and phenols and the use of zirconium phosphate-ferric chloride complex and potassium iron zirconium phosphate as catalyst in Friedel-Crafts reaction.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Selective Oxidation of Alcohols with Zinc Zirconium Phosphate under Solvent‐free Conditions

Karimi

2015

J Chinese Chemical Soc

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Zinc zirconium phosphate (ZPZn) nanoparticles have been used as an efficient catalyst for the selective oxidation of a wide range of alcohols to their corresponding ketones or aldehydes using H 2 O 2 as an oxidizing agent without any organic solvent, phase transfer catalyst, or additive. The steric factors associated with the substrates had a significant influence on the reaction conditions. The results showed that this method can be applied for chemoselective oxidation of benzyl alcohols in the presence of aliphatic alcohols. The catalyst used in the current study was characterized by ICP-OES, XRD, N 2 adsorptiondesorption, NH 3 -TPD, Py-FTIR, SEM, and TEM. These analyses revealed that the interlayer distance in the catalyst increased from 7.5 to 8.7 Å when Zn 2+ was intercalated between the layers, whereas the crystallinity of the material was reduced. This nanocatalyst could also be recovered and reused at least seven times without any discernible decrease in its catalytic activity. This new method for the oxidation of alcohols has several key advantages, including mild and environmentally friendly reaction conditions, excellent yields and a facile work-up.

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Exchange of iron ions into layers of α-zirconium phosphate

Cited by 18 publications

References 6 publications

On the Nature of Sandwiched Chromium Complexes in Exchanged alpha-Zirconium Phosphate

On the Nature of Sandwiched Chromium Complexes in Exchanged alpha-Zirconium Phosphate

Transition Metal-Modified Zirconium Phosphate Electrocatalysts for the Oxygen Evolution Reaction

An Efficient Selective Oxidation of Alcohols with Zinc Zirconium Phosphate under Solvent‐free Conditions

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