Calcined layered double hydroxide precursor

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Rocha, J., del Arco, M., Rives, V. and Ulibarri, M. A. (1999). Reconstruction of layered double hydroxides from calcined precursors a powder XRD and Al-27 MAS NMR study. J. Mater. Chem. 9, 2499. 

Narita, E., Kaviratna, P., and Pinnavaia, T. J. 1991. Synthesis of Heteropolyoxometalate Pillared Layered Double Hydroxides via Calcined Zinc-Aluminium Oxide Precursors. Chem. Lett. 805-08. 

Fig. 10.2 Schematic illustrations and HRTEM images of the different stages in the fabrication of carbon nanorings (CNRs) in the cobalt(II)-aluminum (III) layered double hydroxide (LDH) containing co-intercalated dodecyl sulfonate (DSO) anions and methyl methacrylate (MMA) CoAl-DSO-MMA-LDH matrix (a) the (CoAl-DSO-MMA-LDHCoAl-DSO-MMA-LDH precursor, (b) CoAl-DSO-MMA-LDH after calcination in an Ar atmosphere at 800 °C and (c) isolated CNRs obtained after dissolution of the matrix. Reproduced with permission from [117], Copyright 2013 Wiley...

Ikeda and coworkers synthesized a novel silicate zeolite CDS-1 (CDO) with a cylindrically double saw-edged framework in 2004 [114]. CDS-1 was converted by dehydration-condensation between the layers of pentagonal cylinder-layered silicate (PLS-1). Then in 2008, Okubo and coworkers synthesized novel silicate sodalite (SOD) by topotactic conversion [119]. Another example is shown by Gies and coworkers with the preparation of silicate zeolite RUB-41 (RRO) [109]. By studying the synthesis of hydrous-layered silicates carefully, they used dimethyldipropylammonium hydroxide as the organic SDA to synthesize the layered silicate precursor (RUB-39), and RUB-41 was synthesized after the calcination of RUB-39. 

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