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Inorganic host

The thermodynamic properties of magnesium make it a natural choice for use as an anode material in rechargeable batteries, as it may provide a considerably higher energy density than the commonly used lead-acid and nickel-cadmium systems, while in contrast to Pb and Cd, magnesium is inexpensive, environmentally friendly, and safe to handle. However, the development of Mg-ion batteries has so far been limited by the kinetics of Mg " " diffusion and the lack of suitable electrolytes. Actually, in spite of an expected general similarity between the processes of Li and Mg ion insertion into inorganic host materials, most of the compounds that exhibit fast and reversible Li ion insertion perform very poorly in Mg " ions. Hence, there... [Pg.329]

The assembly of biopolymers with inorganic layered solids can lead to bionanocomposites in which the biopolymer becomes intercalated between the layers of the inorganic hosts [3]. The intercalation is a complex process that may simultaneously involve several mechanisms. Thus, in addition to hydrogen bonding, it has been invoked that certain biopolymers interact with the inorganic layers through... [Pg.3]

Immobilization of Enzymes in 3-D Inorganic Hosts 15.4.2.1 Immobilization in Si02... [Pg.464]

To put the current research in LDH/polymer nanocomposites into context, we will first give a brief review of 2D-hybrid materials composed of a guest polymer and an inorganic host structure. [Pg.122]

In materials science, considerable attention has been devoted to how to prepare and shape new multifimctional materials. For the past two decades, 2D-hybrid materials composed of a guest polymer and an inorganic host structure have been extensively studied [1-10]. The lamellar host structure supplies a constrained environment in which the polymer is forced to locate and both parts may also act synergistically. [Pg.122]

The formation of a sandwich assembly in which a polymer and an inorganic host structure alternate may proceed by several pathways (i) direct intercalation of polymer, (ii) polymer inclusion, and (iii) monomer incorporation followed by subsequent polymerization. [Pg.122]

To overcome the problem of diffusion of cumbersome molecules (such as polymers) into the constrained interlamellar space of LDH, several methods have been employed, which are presented in Fig. 7. According to the general classification established by Schbllhorn et al. [35], there are three principal options to obtain a polymer intercalated inorganic host ... [Pg.129]

Owing to the relatively good crystallinity and the large number of OOZ reflections observed for the hydro calumite derivative, the electron density distribution along the c axis can be estimated using a series of OOZ reflections, in accordance with previous literature [82,83]. One-dimensional electron density calculations based on X-ray diffraction are often carried out to probe the structure of the intercalated species in two-dimensional inorganic hosts [33,84-86]. This yields specific information about the orientation and structure of the intercalated species or at least ehminates certain conformational possibihties, which are incompatible with the diffraction data. In LDH systems, however, such calciflations are usually impossible because the X-ray diffraction patterns of hybrid materials are often very ill defined [87,88]. [Pg.140]

McCusker, L.B., Liebau, F., and Engelhardt, G. (2003) Nomenclature of structural and compositional characteristics of ordered microporous and mesoporous materials with inorganic hosts (lUPAC recommendations 2001). Micropor. Mesopor. Mat., 58 (11), 3-13. [Pg.55]

In either the transcriptive or synergistic strategy, removal of the organic template by extraction or calcination renders the inorganic mesoporous structure. For synthetic schemes that are not compatible with the formation of stable template assemblies, an alternative approach is to use a preformed, templated inorganic host, such as mesoporous silica, as a mold to nanocast the desired material as an inverse replica of the host, such as that seen in Figure 14. ... [Pg.238]

II. LAYERED INORGANIC HOST MATERIALS FOR THE CONSTRUCTION OF MOLECULAR ASSEMBLIES... [Pg.508]


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See also in sourсe #XX -- [ Pg.3 ]




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