POLYOXOMETALATE INTERCALATED LAYERED DOUBLE HYDROXIDES

This invention relates to an intercalated uniform crystalline layered double hydroxide clay composition interlayered by polyoxometalate anions with Keggin-type structures and having the formula Zn2Al(OH)2Ax/n.yH2O wherein A is an anionic polyoxometalate of negative charge n, x ranges between 0.12 an...

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Bibliographic Details
Main Authors DIMOTAKIS, EMMANUEL D, KWON, TAEHYUN, PINNAVAIA, THOMAS J, AMARASEKERA, JAYANTHA
Format Patent
LanguageEnglish
Published 15.09.1993
Edition5
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:This invention relates to an intercalated uniform crystalline layered double hydroxide clay composition interlayered by polyoxometalate anions with Keggin-type structures and having the formula Zn2Al(OH)2Ax/n.yH2O wherein A is an anionic polyoxometalate of negative charge n, x ranges between 0.12 and 0.8 and the x-ray diffraction basal spacing value is greater than about 14 A. It further relates to the use of such compositions as catalysts in the oxidation of methane, sulfur oxides and nitrogen oxides.
Bibliography:Application Number: EP19930104694