Hidróxidos duplos lamelares: síntese, estrutura, propriedades e aplicações

Química Nova

Eduardo Luis Crepaldi¹  João Barros Valim¹ 

[1] ,USP Faculdade de Ciências e Letras de Ribeirão Preto Departamento de QuímicaRibeirão Preto SP

关键词: layered double hydroxides;    anionic clays;    hydrotalcite;   

DOI  :  10.1590/S0100-40421998000300011

来源: SciELO

【 摘 要 】

The layered double hydroxides, known as anionic clays and represented by the general formula [M2+1-x M3+x (OH) 2]x+ Am-x/m·nH 2O, are a group of materials which are of much interest currently. They present a variety of potential applications as adsorbents, catalysts and catalyst support, ion-exchangers, antacids and as a polymer stabilizer. It is possible to obtain a broad variety of layered double hydroxides (LDHs), depending on the identity and ratio of the cations M2+ and M3+, as well as the interlamelar anion. The aim of this review is to give out some information about this class of materials, concerning to the synthesis, characterization, properties and applications.

【 授权许可】

CC BY-NC   
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