Synthesis and Structure Refinement of [Co-Al₄-X] LDHs (X = NO₃ ^- and SO₄ ^2-) from Nordstrandite.

ABSTRACT: [M-Al₄-X] LDHs (M = divalent metal and X = anion) are a class of aluminum-rich layered double hydroxides synthesized from both the gibbsite and bayerite polymorphs of Al(OH)₃. Henceforth, "g" and "b" are used to indicate gibbsite and bayerite. Despite the differences in the stacking arrangement of the hydroxyl layers in the precursor polymorphs, [M-Al₄-X] LDHs whether synthesized from gibbsite or bayerite were seen to be structurally the same. In this work, we report the first ever synthesis of [M-Al₄-X] LDHs (M = Zn, Ni, and Co and X = NO₃ ^- and SO₄ ^2-) from nordstrandite, which is yet another polymorph of Al(OH)₃. Hereafter, "n" represents the nordstrandite precursor. We report that n-[M-Al

SUBMITTER: Venkataraman K 

PROVIDER: S-EPMC9909817 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature