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Intercalation Compounds (intercalation + compound)

Distribution by Scientific Domains

Chemistry	42%

Selected Abstracts

Ag3Ni2O4 , A New Stage-2 Intercalation Compound of 2H,AgNiO2 and Physical Properties of 2H,AgNiO2 above Ambient Temperature.

CHEMINFORM, Issue 20 2007
Timo Soergel
Abstract ChemInform 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. [source]

Structural Study of Novel Graphite,Lithium,Calcium Intercalation Compounds

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 8 2004
Sébastien Pruvost
Abstract Three new layered compounds were synthesised by immersing a pyrographite platelet in a molten Ca,Li alloy creating a new graphite intercalation compound family. The samples were studied by X-ray and neutron diffraction, revealing that the intercalated sheets are polylayered. The study of the 00l reflections allowed us to establish the c -axis stacking of these three phases. The ,-phase exhibits a five-layered intercalated sheet which has something in common with a Li,Ca,Li,Ca,Li slice cut in the CaLi2 structure (ThMn2 Laves phase type). The ,-phase, which is richer in metallic elements and with a greater repeat distance, possesses seven-layered intercalated sheets due to the splitting of the middle lithium plane in three. The third phase is a pseudo-binary compound, containing monolayered sheets and with a formula close to CaC6. Electron microdiffraction allowed us to determine the 2D unit cell for each compound, all of which were commensurate with that of graphite. Charge transfer from the intercalate to the host lattice was evaluated for the three phases from hk0 data, leading to high values. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) [source]

Preparation and Structural Investigation of CuCl2 Graphite Intercalation Compounds

ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 5 2008
BIN Xiaopei
Abstract Superfine graphite powder was prepared by ball-milling exfoliated graphite containing anhydrous CuCI2 in planetary ball milling systems. Nano-scale CuCl2 graphite intercalation compounds were synthesized by heating a mixture of anhydrous CuCl2 and graphite nanosheets. Scanning electron microscopy, energy-dispersive X-ray spectroscopy and high-resolution transmission electron microscopy were performed to characterize the microstructures of stage-1 nano-scale CuCI2 graphite intercalation compounds. The structure and components of the domain wall and core in the nano-scale CuCl2 graphite intercalation compounds are described. The results show that the content of CuCl2 in the mixture plays a crucial role in the size of the nano-scale CuCl2 graphite intercalation compound. [source]

Expanded Graphite: One-Step Exfoliation Synthesis of Easily Soluble Graphite and Transparent Conducting Graphene Sheets (Adv. Mater.

ADVANCED MATERIALS, Issue 43 2009
43/2009)
The inside cover shows an SEM image of easily soluble expanded graphite (ESEG) on a Si substrate. In work by Ji-Beom Yoo and co-workers (p. 4383) the ESEG was prepared from a fluorinated graphite intercalation compound (FGIC),C2F,·,nClF3. The inset scheme shows the fluorinated graphite intercalation compound. Due to the severe expansion state, the ESEG can be dispersed in organic solvents or even water by ultrasonication with common surfactants. [source]

Preparation and Structural Investigation of CuCl2 Graphite Intercalation Compounds

Orientational Control of Guest Molecules in an Organic Intercalation System by Host Polymer Tacticity

CHEMISTRY - A EUROPEAN JOURNAL, Issue 8 2006
Shinya Oshita
Abstract Four kinds of stereoregular poly(muconic acid)s, which are synthesized by topochemical polymerization and subsequent solid-state hydrolysis, are used as the organic host materials for intercalation. We describe the reaction behavior and layered structure of intercalation compounds using stereoregular poly(muconic acid)s and n -alkylamines as host and guest, respectively. The packing structure of the guest alkylamines was determined by X-ray diffractions as well as IR and Raman spectroscopies. We have found that the orientation of the guest molecules is controlled by the host polymer tacticity, depending on the structure of the two-dimensional hydrogen-bonding network formed in the polymer sheets of the crystals. [source]