Layered Double Hydroxides (LDH): applicazioni di interesse per la metallurgia

Layered Double Hydroxides (LDHs) are 2D ionic lamellar nano-materials belonging to the group of anionic clays. Their structure consists of positively charged brucite-like layers and intercalated anions. The layered structure, together with the flexibility to intercept different anionic species (both inorganic and organic) in variable compositions has attracted increasing interest. In order to meet specific requirements in very distant fields, considerable efforts are made to tailor the physical/chemical properties of LDHs and to design engineered LDH for several applications among which those related to metallurgical processes and products are of particular interest. This paper presents the characteristics, some preparation routes and reviews the applications of LDH to metallurgy with some examples taken from the experimental research of the author