PACRIM S11:  Layered Double Hydroxides: Science and Design of Binding Field with Charged Layers

Layered double hydroxides (LDHs) are anionic clays, and the general formula for LDHs is [M^II_1－x M^III_x(OH)₂][(A^n－)_x/n・mH₂O], where M^II is a divalent cation, and M^III is a trivalent cation, and A^n－ is an anion. LDHs consist of alternately stacked layers of the positively charged metal hydroxide nanosheets (charged layers) and interlayer anions with binding field. In hydroxide nanosheets, metal ions with different valence are self-assembled in-plane. These periodic structures are formed under the ambient atmosphere.  Over the last decade, research on LDHs has been developing in several fields and applications, in both fundamental and applied aspects of these materials. However, communication between researchers on LDHs with different research fields is insufficient. Collaboration of researchers under the concept of science and design binding field with charged layers must lead to significant developments in hydroxide-based materials with layered structure.

This symposium will focus on preparation, characterization, application, and novel properties of LDHs, layered hydroxides, and hydroxide nano-sheets in any research field. The science and design of “binding field with charged layers” will be discussed.

Proposed sessions

• Layered double hydroxides
• Layered hydroxides
• Hydroxide nanosheets
• Advanced structural analysis, novel preparation process, and novel properties of these materials
• Application of these materials to electrochemical devices, magnetic materials, catalysts, optical materials, drug-delivery system, anion exchanger, water purification system, etc.

Organizers

• Kiyoharu Tadanaga, Hokkaido University, Japan, tadanaga@eng.hokkudai.ac.jp
• Chikako Moriyoshi, Hiroshima University, Japan
• Kentaro Teramura, Kyoto University, Japan
• Jae-Min Oh, Dongguk University, Korea
• Andrei Jitianu, City University of New York, USA