Surfactant intercalated α-hydroxides of cobalt and nickel and their delamination-restacking behavior in organic media

Effect of various factors influencing the delamination behavior of surfactant intercalated layered double hydroxides

“…Recently, Singh et al [16] have reported that while dodecyl benzene sulfonate intercalated Li-Al LDH delaminated in butanol, the dodecyl sulfate analogue could not be delaminated in the same solvent while we observed [17,18] that hydroxysalts and α-hydroxides intercalated with these surfactants delaminate almost identically in butanol. This shows that the delamination of LDHs in organic solvents is controlled by many factors other than the mere presence of surfactant anions in the interlayer region.…”

Control of uniform nanostructured α-Ni(OH)2 with self-assembly sodium dodecyl sulfate templates

“…3. Thanks for excellent works done in literatures for XRD analysis on intercalated metal hydroxides [34][35][36][37]. All the peaks of DS-aNi(OH) 2 -0.05 M correspond to the a-Ni(OH) 2 structure except shifting to lower angle, which is resulted from the increase of the d-spacing at (0 0 l) direction by intercalation of DS À anions.…”

Interstratification of trioctahedral and dioctahedral smectites through delamination and costacking

“…There are reports on the preparation of a number of nanocomposites of layered solids with a variety of guest species which include polymers [3,4], biopolymer [5] and carbon nanotubes [6]. Delamination, a process unique to layered solids [7,8], has much to offer in the preparation of nanocomposites as this process gives monolayer colloidal dispersion of layered solids which has the potential to blend layered solids with almost any type of guest species. We have recently shown the use of this method in the preparation of a number of composites such as layered solid-nanoparticle [9], MgAl LDH-CoAl LDH [10] and α-nickel hydroxide-α-cobalt hydroxide [11] composites.…”