Layered double hydroxides

Layered double hydroxides (LDH) are a class of <a href="/facts/Ionic_solid/jB9nMfrE">ionic solids</a> characterized by a layered structure with the generic layer sequence [AcB Z AcB]n, where c represents layers of metal <a href="/facts/Cations/wrbwhF3z">cations</a>, A and B are layers of <a href="/facts/Hydroxide/zW0wxpWD">hydroxide</a> (OH−) <a href="/facts/Anions/wrbwhF3z">anions</a>, and Z are layers of other anions and neutral molecules (such as water). Lateral offsets between the layers may result in longer repeating periods.
The intercalated anions (Z) are weakly bound, often <a href="/facts/Ion_exchange/C2DPoGqg">exchangeable</a>; their <a href="/facts/Intercalation_(chemistry)/YsayFumX">intercalation</a> properties have scientific interest and industrial applications.
LDHs occur in nature as <a href="/facts/Mineral/LkUFbNmv">minerals</a>, as byproducts of <a href="/facts/Metabolism/WxDrm8k5">metabolism</a> of certain <a href="/facts/Bacteria/wC8xSCsU">bacteria</a>, and also unintentionally in man-made contexts, such as the products of <a href="/facts/Corrosion/lIC7H4we">corrosion</a> of metal objects.

Layered double hydroxides open-in-new

Layered double hydroxides