Layered double hydroxides are a kind of two dimensional layered materials, represented typically by the hydrotalcite Mg_6Al_2(OH)_(16)4H_2O.

• 层状双羟基复合金属氧化物(LDHs)是一类层状结构化合物,典型的是含碳酸根的镁铝水滑石[Mg_6Al_2(OH)_(16)4H_2O]。