Results 211 to 220 of about 6,903 (251)

Intercalation of Dyes in Layered Zirconium Phosphates. 1. Preparation and Spectroscopic Characterization of α-Zirconium Phosphate Crystal Violet Compounds

Langmuir, 1997
The intercalation of crystal violet (CV+) into the ethanol form of α-zirconium phosphate has been investigated.
Hoppe Rainer, Alberti Giulio, Costantino Umberto, Dionigi Chiara, SchulzEkloff Günter, Vivani Riccardo   +5 more
openaire   +2 more sources

Preparation of layered zirconium phosphonate/phosphate, zirconium phosphonate/phosphite and related compounds

Materials Chemistry and Physics, 1993
Abstract The preparation and characterization of a number of layered zirconium compounds containing inorganic phosphorus groups as well as organic phosphonate groups are described. Thermal decomposition of ZrF62− in the presence of mixed phosphoric and phenylphosphonic acids leads to formation of a staged compound in which the organic and inorganic ...
J.Don Wang, Abraham Clearfield, Peng Guang-Zhi   +2 more
openaire   +1 more source

Fabrication of Electroactive Layer-by-layer Films with Myoglobin and Zirconium Phosphate Nanosheets

Chemistry Letters, 2008
Abstract Electroactive multilayer films composed of exfoliated nanosheets of α-zirconium phosphate and myoglobin (Mb) have been fabricated on the surface of glassy carbon electrodes through electrostatic layer-by-layer self-assembly technique. Direct electron-transfer process of Mb immobilized in the film was investigated.
Xiushuang Yang, Xu Chen, Jiahui Zhang, Wensheng Yang   +3 more
openaire   +1 more source

Hydrothermal synthesis of layered zirconium phosphates and their intercalation properties

Environmental Technology
Layered inorganic materials are widely used as fillers in nanocomposites due to their unique properties such as mechanical performance, thermal properties, flame resistance, barrier properties, corrosion resistance, catalytic activity, and multifunctionality.
Saki Aso, Hiroaki Onoda
openaire   +2 more sources

Intercalation of diamines into zirconium phosphate-phosphite: A layered compound with asymmetric layers

Journal of Inclusion Phenomena and Molecular Recognition in Chemistry, 1989
Many primary diamines H2N(CH2)nNH2 (all the members withn ranging from 0 to 12 with the exception ofn =I 1) have been intercalated within the phosphate regions of layered zirconium phosphate-phosphite. As a general rule, intercalation occurs in two steps that are not well differentiated.
Guilio Alberti, Umberto Costantino, Fabio Marmottini, Giovanni Perego   +3 more
openaire   +1 more source

POTASSIUM EXCHANGED LAYERED ZIRCONIUM PHOSPHATE AS BASE CATALYST IN KNOEVENAGEL CONDENSATION

Synthetic Communications, 2002
Potassium exchanged layered zirconium phosphate catalyzed Knoevenagel condensation of aldehydes and active methylene compounds gave the corresponding E configurated olefinic derivatives in solvent free conditions.
CURINI M, EPIFANO, Francesco, MARCOTULLIO M. C, ROSATI O, TSADJOUT A.   +4 more
openaire   +3 more sources

Exchange of iron ions into layers of α-zirconium phosphate

Solid State Ionics, 2001
Abstract Exchange of Fe 3+ and Fe 2+ ions into layers of α-zirconium phosphate is achieved in aqueous media by using monosodium and/or ethanolic forms of the host precursor. The products obtained are characterized by chemical analysis, X-ray powder diffraction and Mossbauer spectroscopy.
U Costantino, L Szirtes, E Kuzmann, J Megyeri, K Lázár   +4 more
openaire   +1 more source

Intercalation of LiClO4 into the Organic Derivative of Layered Zirconium Phosphate

Chemistry Letters, 1991
Abstract The interlayer surface of γ-zirconium phosphate was chemically modified by the reaction with ethylene oxide. The resulting layered organic derivative can be intercalated with LiClO4, forming solid solutions over a pretty wide range of the compositions.
Shoji Yamanaka, Masayoshi Sarubo, Kazuo Tadanobu, Makoto Hattori   +3 more
openaire   +1 more source

ChemInform Abstract: Pillaring of Layered Zirconium and Titanium Phosphates.

ChemInform, 1988
AbstractAttempts to prepare robust pillars of clays and nonsilicious compounds are carried out in order to obtain new catalytically active large‐pore structures having a range of acidic and shape‐selective properties.
A. CLEARFIELD, B. D. ROBERTS
openaire   +1 more source

Layered and pillared zirconium phosphate-phosphonates and their inclusion chemistry

Supramolecular Chemistry, 1995
Abstract After a brief account on previous results obtained in this Laboratory in the field of layered and pillared α- and γ-zirconium phosphonates, the perspectives for a development of a “molecular recognition” in porous and in layered solids are examined.
G. Alberti, U. Costantino, C. Dionigi, S. Murcia-Mascarós, R. Vivani   +4 more
openaire   +1 more source