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Intercalation process of metavanadate chains into a nickel–cobalt layered double hydroxide

✍ Scribed by K.S Han; L Guerlou-Demourgues; C Delmas

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
417 KB
Volume
98
Category
Article
ISSN
0167-2738

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✦ Synopsis

n 2 A layered double hydroxide (LDH) built up of a packing of Ni Co (OH) slabs with interlamellar (VO ) 0.70 0.30 2 3 n

metavanadate chains was prepared by a 'chimie douce' method. In order to investigate the process of intercalation yielding this material, the structural changes of the vanadate species primarily inserted into the LDH during the preparation step were followed by X-ray diffraction, infrared spectroscopy and chemical analysis. The results show that diperoxovanadate ions are n 2

first inserted, then polycondense to give rise to (VO ) metavanadate chains in the final LDH.

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