title: Solid-solid transformation mechanism for nanocrystalline sodalite from pillared clay.
abstract: We here report the synthesis of nanocrystalline sodalite by a solid-solid transformation from a solid gel mixture of Al2O3 pillared montmorillonite (Al2O3-PILM) and NaOH under an ambient atmosphere at 80 degrees C. HR-TEM clearly shows both the formation of sodalite nuclei by the solid-solid transformation of the montmorillonite matrix and the crystal growth of nanocrystalline sodalite through the rearrangement of delocalized nuclei.
authors.affiliation: National Nanohybrid Materials Laboratory, School of Chemistry and Molecular Engineering, Seoul National University, Seoul 151-747, Korea. jhchoy@plaza.snu.ac.kr
authors.forename: Jin-Ho
authors.initials: JH
authors.lastname: Choy
authors.forename: Sung-Reol
authors.initials: SR
authors.lastname: Lee
authors.forename: Yang-Su
authors.initials: YS
authors.lastname: Han
authors.forename: Man
authors.initials: M
authors.lastname: Park
authors.forename: Gyeong-Su
authors.initials: GS
authors.lastname: Park