Results 181 to 190 of about 15,400 (230)

Anionic Clay and Hydrotalcite Synthesis

Key Engineering Materials, 2001
Anionic clays are becoming more important for their application as catalysts, ion exchangers and adsorbers and for medical applications as well. Anionic clays are also used as stabilizers of dispersive systems of ceramic suspensions and drilling fluids in the oil industry, The anionic clays have an appropriate use in ceramic industry during raw ...
Radojević, Zagorka, Kostić-Gvozdenović, L., Vasić, Radomir   +2 more
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Thermal Behavior of Hydrotalcite and of Anion-Exchanged Forms of Hydrotalcite

Clays and Clay Minerals, 1980
AbstractChloride-, sulfate-, and perchlorate-exchanged forms of hydrotalcite have been prepared and their layer spacings determined after equilibration in hydrous atmospheres and after heat-treatments up to the temperature of decomposition in the range 300–400°C.
G. W. Brindley, S. Kikkawa
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Synthetic Hydrotalcite‐Like Compounds

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Frantisek Kovanda, Kveta Jiratova, Radka Kalouskova   +2 more
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Sorption of131I− by hydrotalcites

Journal of Radioanalytical and Nuclear Chemistry, 1997
In this work, hydrotalcites were used to remove131I− from aqueous solutions. It was found that131I− sorption by hydrotalcites depends greatly on the thermal treatment of the solid and does not take place by ion exchange as I− is not capable of removing CO 3 −2 or other ions in the hydrotalcite.
G. Fetter, E. Ramos, M. T. Olguin, P. Bosch, T. López, S. Bulbulian   +5 more
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Coinage Metal Nanoparticles on Hydrotalcite - Gold Nanoparticles on Hydrotalcite

2013
Gold nanoparticles on hydrotalcite [7440-57-5] Au InChI = 1S/Au InChIKey = PCHJSUWPFVWCPO-UHFFFAOYSA-N [11097-59-9] CH24Al2Mg6O23 InChI = 1S/CH2O3.2Al.6Mg.20H2O/c2-1(3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H2,2,3,4);;;;;;;;;20*1H2/q;2*+3;6*+2;;;;;;;;;;;;;;;;;;;;/p-18 InChIKey = PWZFXELTLAQOKC-UHFFFAOYSA-A ...
Kiyotomi Kaneda, Takato Mitsudome
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Thermal stability of sol-gel hydrotalcites

Journal of Sol-Gel Science and Technology, 1997
Sol-Gel Hydrotalcites were synthesized using magnesium ethoxide and variable aluminum sources: aluminum acetilacetonate, aluminum chloride, aluminum nitrate and aluminum sulfate; in all cases, the gelation was done at pH 10. X-ray diffraction studies show that the crystallinity depends on the aluminum precursor used.
E. Ramos, T. Lopez, P. Bosch, M. Asomoza, R. Gomez   +4 more
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Hexacyanoferrate-interlayered hydrotalcite

Solid State Ionics, 1996
Abstract Hexacyanoferrate(II) and hexacyanoferrate(III) hydrotalcites have been synthesized by exchange of originally existing carbonate ions at pH = 4.5. The samples have been characterized by elemental chemical analysis, powder X-ray diffraction, FT-IR and X-ray absorption spectroscopies, nitrogen adsorption for specific surface area and porosity
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Novel oligovanadate-pillared hydrotalcites

Applied Clay Science, 1995
Abstract Oligovanadate-pillared hydrotalcite-type layered materials are expected to be shape-selective oxidation catalysts with tunable acid-base character. The preparation and characterization of four oligovanadate-pillared clays are reported here. These are Mg 5 Al 2 (OH) 14 (V 2 0 7 ) 0.5 ·5H 2 O, Mg 4 Al 2 (OH) 12 (HV 2 O 7 ) 0.67 · x H 2 O, Mg 5.
Alak Bhattacharyya, Daniel B. Hall, Tamila J. Barnes   +2 more
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Hydrotalcite and Hydrotalcite-Based Materials

This chapter deals with the history of hydrotalcite and hydrotalcite-based materials. A rare mineral known as hydrotalcite was found in Sweden sometimes in the 1840s. Magnesium aluminum hydroxycarbonate, Mg6Al2 (OH)16CO34H2O, is its chemical name, and Taylor and Allmann independently determined its layered structure.
K Ganesh Kadiyala, Kadali Jagadeesh
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Porous Spheroidal Hydrotalcite Aggregates

MRS Proceedings, 1994
AbstractControlled precipitation conditions allow the formation of highly porous, spheroidal aggregates of hydrotalcite. The aggregate structure resembles a house-of-cards, being composed of interconnected thin plates. The aggregate size can vary over a range of about 1 to 60 μm by altering precipitation conditions such as mixing shear, temperature ...
Sherman D. Cox, Kenneth J. WISE
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