Thermal variations of iodine nanostructures inside the channels of AlPO4-5 zeolite single crystals

J. T. Ye*, Y. Iwasa, Z. K. Tang

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

The structural changes of ordered hexagonal arrays of iodine nanostructures enclosed inside one-dimensional channels of aluminophosphate zeolites are studied. These isolated nanochains undergo structural transformations between linked chains and separated molecules, as shown by tracing the temperature variations of their distinctive Raman features when these nanostructures are heated thermally to the transition temperature of similar to 70 degrees C. The reversibility of this transition is improved by replacing the conventional thermal heating with localized heating using a focused laser beam, which reduced the diffusion along the channels. In addition, the optically identified transition is consistently confirmed by thermal characterization using differential scanning calorimetric and thermal gravimetric analyses.

Original languageEnglish
Article number193409
Number of pages4
JournalPhysical Review. B: Condensed Matter and Materials Physics
Volume83
Issue number19
DOIs
Publication statusPublished - 25-May-2011
Externally publishedYes

Keywords

  • CHAINS
  • CONFINEMENT
  • SEPARATION
  • SPECTRA
  • SE

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