Results 201 to 210 of about 10,404 (259)

On the mechanism of ion exchange in zirconium phosphates—XXII mixed zirconium titanium phosphates

Journal of Inorganic and Nuclear Chemistry, 1978
Abstract α-Titanium phosphate, Ti(HPO4)2·H2O, was found to form two sodium ion exchanged phases. A half exchanged phase of ideal composition TiNaH(PO4)2·4H2O formed first. However, before all of the titanium phosphate was converted to this phase a second phase of higher Na+ content formed. Thus, a three phase solid existed until sufficient sodium ion
Abraham Clearfield, Teresita N. Frianeza
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Zirconium Phosphate Supported MOF Nanoplatelets

Inorganic Chemistry, 2016
We report a rare example of the preparation of HKUST-1 metal-organic framework nanoplatelets through a step-by-step seeding procedure. Sodium ion exchanged zirconium phosphate, NaZrP, nanoplatelets were judiciously selected as support for layer-by-layer (LBL) assembly of Cu(II) and benzene-1,3,5-tricarboxylic acid (H3BTC) linkers. The first layer of Cu(
Yuwei, Kan, Abraham, Clearfield
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Comparison of sodium zirconium phosphate and calcium zirconium phosphate structures for the retention of fluoride

Journal of Radioanalytical and Nuclear Chemistry, 2013
Fluoride anion interaction has been explored for the first time to investigate how the structure of sodium zirconium phosphate (NZP) and calcium zirconium phosphate (CZP) can be altered in its presence. Different compositions were made by adding NaF and CaF2 in CZP and NZP matrices respectively.
Ambarish Dey, Amit Das Gupta, Debrata Basu, Ritu D. Ambashta, P. K. Wattal, Sanjiv Kumar, Monique Body, P. R. Rajamohanan   +7 more
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Amino Acid Derivatives of Layered Zirconium Phosphates – α-Zirconium L-(+)-Serinephosphate and Zirconium L-(+)-Serinephosphate Phosphates

European Journal of Inorganic Chemistry, 1998
A layered derivative of α-zirconium phosphate containing L-(+)-serine covalently attached to the inorganic layer has been prepared by allowing Zr fluoro complexes to decompose in the presence of L-(+)-phosphoserine. On the basis of thermogravimetric weight loss and C,H,N elemental analyses, the layered compound obtained has been formulated as Zr[HOOCCH(
NOCCHETTI, Morena, U. COSTANTINO, MARMOTTINI, Fabio, AND R. VIVANI   +3 more
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Polyaniline intercalated into zeolites, zirconium phosphate and zirconium arsenate

Journal of Physical Organic Chemistry, 1994
AbstractAniline (or aniline hydrochloride) was intercalated into zeolite, zirconium phosphate and zirconium arsenate (proton form and sodium form) and subsequently oxidized to polyaniline (PAN) by ammonium peroxodisulphate. The structure of PAN in the host was studied by electron paramagnetic resonance spectroscopy.
Te‐Chuan Chang, Shih‐Yeng Ho, Kuei‐Jung Chao   +2 more
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Zirconium Phosphate and Modified Zirconium Phosphates as Supports of Lipase. Preparation of the Composites and Activity of the Supported Enzyme

Langmuir, 2002
Biocomposites with enzymatic activity were obtained by adsorption of lipase from Candida rugosa on the surface of different layered zirconium phosphates and phosphonates such as α-zirconium hydrogenphosphate, solid dispersions of zirconium phosphate in silica, zirconium carboxyethanephosphonate, zirconium phosphate-carboxyethanephosphonate, zirconium ...
BELLEZZA F, CIPICIANI, Antonio, COSTANTINO, Umberto, NEGOZIO M. E.   +3 more
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On the Synthesis of α-Zirconium Phosphate

Chemistry of Materials, 2000
Crystalline α-zirconium phosphate, Zr(HPO4)2·H2O, was obtained by direct precipitation of soluble salts of zirconium(IV) with phosphoric acid.
Camino Trobajo, Sergei A. Khainakov, Aránzazu Espina, José R. García   +3 more
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Hydrothermal synthesized microflower sodium zirconium phosphate and its transformation to zirconium hydrogen phosphate

Materials Letters, 2015
Abstract The Na 2 Zr(PO 4 ) 2 with morphologies of microflower or square-like sheet were prepared from phosphate solution and zirconium oxychloride by hydrothermal treatment at 180 °C for a short time. It was found that the different phosphate solution conditions played a vital role in crystal growth of Na 2 Zr(PO 4 ) 2 .
Wang Yan-Qing, Liu Zhao-Jia, Guo Ming-Lin   +2 more
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On the mechanism of ion exchange in zirconium phosphates—XXI Intercalation of amines by α-zirconium phosphate

Journal of Inorganic and Nuclear Chemistry, 1979
Abstract The intercalation of n -propylamine, n -butylamine and ethylenediamine by the layered compound α-zirconium phosphate has been examined. Each of the amines forms a number of phases whose interlayer spacings are indicative of the orientation of the amines within the layers.
Abraham Clearfield, Robert Morley Tindwa
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Synthesis of sodium zirconium phosphates

Polyhedron, 1986
Abstract Zr(O3PONa)2 · nH2O can be prepared as a single crystalline phase by direct precipitation in the presence of HF. This material is a powder. When a single crystal of α-HZrP is exchanged with Na+, Zr(O3PONa)2 · nH2O is obtained as a powder-like crystal.
Dominique P. Vliers, Wilfried J. Mortier, Robert A. Schoonheydt   +2 more
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