Morphological control of layered double hydroxide through a biomimetic approach using carboxylic and sulfonic acids

Taishi Yokoi, Kei Tsukada, Sota Terasaka, Masanobu Kamitakahara, Hideaki Matsubara

Research output: Contribution to journalLetterpeer-review

14 Citations (Scopus)

Abstract

Layered double hydroxides (LDHs) have intercalation properties and are used in various applications. The performances of the LDH materials can be improved by controlling crystal morphology. Morphology of inorganic crystals is controlled by organic molecules in biomineralization. Inspired by biomineralization, we investigated the effect of the addition of mono, di and triacids as morphological control agents on crystal morphology of LDH synthesized by the homogeneous precipitation method. Morphology of LDH was changed from hexagonal plate to stacked disc by addition of monoacids, namely acetic acid and methanesulfonic acid, in the reaction solution. Flower-shaped LDH crystals were formed in the presence of diacids and a triacid, namely succinic acid, 1,2-ethanedisulfonic acid and 1,2,3-propanetricarboxylicacid. We found that the morphology of the LDH crystals was controlled by the number of functional group on the morphological control agent rather than the type of functional group. These findings can contribute for the development of novel and functional LDH materials with precisely controlled morphology.

Original languageEnglish
Pages (from-to)230-233
Number of pages4
JournalJournal of Asian Ceramic Societies
Volume3
Issue number3
DOIs
Publication statusPublished - 2015 Sep 1

ASJC Scopus subject areas

  • Ceramics and Composites

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