New topochemical reactions of layered inorganic materials

Yoji Kobayashi, Hideo Hata, Miharu Eguchi, Renzhi Ma, Thomas E. Mallouk

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Lamellar inorganic solids have interesting physical properties related to anisotropic transport of electrons and ions, host-guest chemistry, magnetism, and catalysis. Because these solids are held together in the stacking direction by relatively weak bonds, they are subject to intercalation and exfoliation reactions, as well as low-temperature topochemical reactions that convert one structure type into another. We have recently found that intercalation of cationic polymers into anionic layered hosts can invert the charge on the sheets, making the galleries hosts for anionic molecular guests and nanoparticles. Topochemical condensation reactions can be used to convert layered solids into three-dimensionally bonded materials with unusual crystal textures, magnetic, and electronic transport properties. The anisotropic bonding in diamagnetic layered compounds also leads to anisotropy in their magnetic susceptibility, such that they tend to align in strong magnetic fields with one of their in-plane axes parallel to the field direction. We are now studying this effect as a means of preparing oriented particle membranes of proton-conducting platelets, exfoliated sheets, and nanoscrolls for intermediate temperature fuel cells.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
StatePublished - Dec 1 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727


Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
Country/TerritoryUnited States
CityPhiladelpia, PA

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)


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