Yang, Deng-ShiuDeng-ShiuYangWang, Ming-KuangMing-KuangWangSHAN-LI WANG2018-09-102018-09-102004-06https://www.scopus.com/pages/publications/4644222162?origin=resultslisthttp://scholars.lib.ntu.edu.tw/handle/123456789/307787Layered double hydroxides (LDHs) are known as 'anionic clays'. They comprise a class of material with positively charged octahedral double hydroxyl layers and exchangeable anions. The Li/Al LDH term includes a group of LDHs with Li/Al octahedral double hydroxyl layers. We have demonstrated a modifed method, using Li/Al LDH-OH (OH- as interlayer anions) as the starting material, for preparing Li/Al LDH-X (X represents interlayer anions, including dioctyl sulphosuccinate (DOSS), dodecyl sulphate (DDS), mercaptoacetate (MA), EDTA, Tiron and dichromate) under mild acid conditions (pH in the range 4 to 5). However, in the case of acid-sensitive anions, Fe(CN 4-6 , Li/Al LDH-Fe(CN)4-6 can be prepared by a two-step procedure using Li/Al LDH-DOSS or similar compounds as intermediates to react with acid-sensitive anions under mild alkaline conditions (pH ≈ 9).Anionic clayIntercalationLayered double hydroxideLDHOrganic anionOrganometallic anionOxometallic anionjournal article10.1180/00098550439201242-s2.0-4644222162