Layered double hydroxides (LDHs), also called hydrotalcite like compound (HTlc), is a typical anions layer materials.

• 层状双金属氢氧化物(Layered Double Hydroxides，简写为LDHs)，又称类水滑石化合物(Hydrotalcite like compounds，简写为HTlc)，是一种典型的阴离子型层状化合物。