hydrotalcite


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hydrotalcite

[‚hī·drə′tal‚sīt]
(mineralogy)
Mg6 Al2(OH)16(CO3)·4H2O Pearly-white mineral composed of hydrous aluminum and magnesium hydroxide and carbonate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Carbon nanotubes, graphene and related materials, clays and hydrotalcite are nanometric fillers: Their nanosized primary particles can be separated and individually dispersed in the polymer matrix.
As a certain amount of water inserted into the surface adsorbed water and interlayer space of hydrotalcite, a bending vibration peak of crystalline water rise in the 1629-1650 cm-1 Compared the vibration of the interlayer CO 2-position at 1367-1382 cm-1 with the free state CO 2- (1430 cm-1), the former moved to low wave number, demonstrating that hydrogen bonding existed in interlayer CO3 and interlayer water molecules.
The film-forming reaction is shown in (6), with it mainly being the formation of a hydrotalcite conversion coating process, with magnesium ions, aluminium ions, carbonate ions, hydroxyl ions, and an aqueous solution.
For all cases, hydrotalcite structure evolved thermally to a crystalline phase of periclase-type magnesium oxide (MgO) (JCPDS 4-0829), which is accompanied by a small crystalline phase of solid-state aluminum polyoxycation [10], which segregated due to the sol-gel hydrotalcite synthesis method and heat treatment at 500[degrees]C during a prolonged time for activation and catalytic application on photodegradation.
Biodiesel production from waste oils by using lipase immobilized on hydrotalcite and zeolites.
Transesterification of poultry fat with methanol using Mg-Al hydrotalcite derived catalysts.
Combination of merits of basic oxides, noble metals and supports for the N[O.sub.x] storage/reduction reactions lead to the formulation of metal oxide supports, ion-exchanged zeolites, perovskites as well as hydrotalcites and hydrotalcite based catalysts.
Krotzsch, "Controlled release of ferulic acid from a hybrid hydrotalcite and its application as an antioxidant for human fibroblasts," Microporous and Mesoporous Materials, vol.
In our previous work [9, 10], some layered materials such as [alpha]-zirconium phosphate and Mg-Al hydrotalcite were added into the iodide/triiodide ionic liquid to prepare quasi-solid-state electrolytes, which obviously improves the photovoltaic properties of quasisolid DSSCs.