Secondary Crystal Growth on a Cracked Hydrotalcite-Based Film Synthesized by the Sol-Gel Method

Wooyoung Lee, Chan Hyun Lee, Ki Bong Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The sol-gel synthesis method is an attractive technology for the fabrication of ceramic films due to its preparation simplicity and ease of varying the metal composition. However, this technique presents some limitations in relation to the film thickness. Notably, when the film thickness exceeds the critical limit, large tensile stresses occur, resulting in a cracked morphology. In this study, a secondary crystal growth method was introduced as a post-treatment process for Mg/Al hydrotalcite-based films synthesized by the sol-gel method, which typically present a cracked morphology. The cracked hydrotalcite-based film was hydrothermally treated for the secondary growth of hydrotalcite crystals. In the resulting film, hydrotalcite grew with a vertical orientation, and the gaps formed during the sol-gel synthesis were filled with hydrotalcite after the crystal growth. The secondary crystal growth method provides a new solution for cracked ceramic films synthesized by the sol-gel method.

Original languageEnglish
Pages (from-to)4206-4210
Number of pages5
JournalInorganic Chemistry
Volume55
Issue number9
DOIs
Publication statusPublished - 2016 May 2

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hydrotalcite
Polymethyl Methacrylate
Crystallization
Sol-gel process
crystal growth
Gels
gels
Ceramics
Sol-gels
Film thickness
film thickness
ceramics
vertical orientation
synthesis
tensile stress
Tensile stress
Metals
Technology
Fabrication
preparation

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Secondary Crystal Growth on a Cracked Hydrotalcite-Based Film Synthesized by the Sol-Gel Method. / Lee, Wooyoung; Lee, Chan Hyun; Lee, Ki Bong.

In: Inorganic Chemistry, Vol. 55, No. 9, 02.05.2016, p. 4206-4210.

Research output: Contribution to journalArticle

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